simplify 3 2/5 ÷ 51/15
step 1
convert mixed number to an improper fraction
3 2/5=3+2/5=17/5
step 2
substitute
17/5:51/15
Multiply in cross
17(15)/(5*51)
=(17*3)/(51)
REmember that
17/51=1/3
so
=3/3
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