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3/4 - 1/5

User Kidsunbo
by
7.6k points

2 Answers

3 votes

Answer:

11/20 or 0 whole 11/20 or 0.55

Step-by-step explanation:


  • 3/4 - 1/5

Find the least common multiple (LCM) of 4 and 5 at first:

We can't do the LCM of 5 and 4,so just multiply them, 5*4 = 20

Now,

For 3/4 : divide 20 by 4,then multiply the result by 3.For 1/5 : divide 20 by 4, then multiply the result by 1. Simple!


  • \cfrac{15 - 4}{20}

Subtracting the numerators,


  • \boxed{\cfrac{11}{20} }

As a whole number:


  • \boxed{0 \cfrac{11}{20} }

As a decimal:


  • \boxed{0.55 }
User Autronix
by
7.9k points
2 votes

Answer:


\sf (11)/(20) \quad or \quad 0.55

Step-by-step explanation:


\rightarrow \sf (3)/(4) - (1)/(5)

make the denominators same by lcm


\rightarrow \sf (5(3))/(20) - (4(1))/(20)

expand the following


\rightarrow \sf (15)/(20) - (4)/(20)

Join the fractions together


\rightarrow \sf (15-4)/(20)

Subtract the integers


\rightarrow \sf (11)/(20) \quad or \quad 0.55

User Jackslash
by
7.6k points

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