Answer: 54to,
4
3
,108to,
83
60
,24
Explanation:
6to\times 9,\frac{9}{12},9to\times 12,\frac{15}{20\frac{15}{20}},246to×9,
12
9
,9to×12,
20
20
15
15
,24
6 to 9, 9/12 9 to 12, 15/20 15/20, 24
+ − . ln > <
× ÷ / log ≥ ≤
( ) logx = %
1 Simplify \frac{15}{20}
20
15
to \frac{3}{4}
4
3
.
6to\times 9,\frac{9}{12},9to\times 12,\frac{15}{20\frac{3}{4}},246to×9,
12
9
,9to×12,
20
4
3
15
,24
2 Convert 20\frac{3}{4}20
4
3
to improper fraction. Use this rule: a \frac{b}{c}=\frac{ac+b}{c}a
c
b
=
c
ac+b
.
6to\times 9,\frac{9}{12},9to\times 12,\frac{15}{\frac{20\times 4+3}{4}},246to×9,
12
9
,9to×12,
4
20×4+3
15
,24
3 Simplify 20\times 420×4 to 8080.
6to\times 9,\frac{9}{12},9to\times 12,\frac{15}{\frac{80+3}{4}},246to×9,
12
9
,9to×12,
4
80+3
15
,24
4 Simplify 80+380+3 to 8383.
6to\times 9,\frac{9}{12},9to\times 12,\frac{15}{\frac{83}{4}},246to×9,
12
9
,9to×12,
4
83
15
,24
5 Simplify 6to\times 96to×9 to 54to54to.
54to,\frac{9}{12},9to\times 12,\frac{15}{\frac{83}{4}},2454to,
12
9
,9to×12,
4
83
15
,24
6 Simplify \frac{9}{12}
12
9
to \frac{3}{4}
4
3
.
54to,\frac{3}{4},9to\times 12,\frac{15}{\frac{83}{4}},2454to,
4
3
,9to×12,
4
83
15
,24
7 Simplify 9to\times 129to×12 to 108to108to.
54to,\frac{3}{4},108to,\frac{15}{\frac{83}{4}},2454to,
4
3
,108to,
4
83
15
,24
8 Invert and multiply.
54to,\frac{3}{4},108to,15\times \frac{4}{83},2454to,
4
3
,108to,15×
83
4
,24
9 Use this rule: a \times \frac{b}{c}=\frac{ab}{c}a×
c
b
=
c
ab
.
54to,\frac{3}{4},108to,\frac{15\times 4}{83},2454to,
4
3
,108to,
83
15×4
,24