Subtract 24/35 from 42/5, Solve 8 2/5

Subtract 24/35 from 42/5

1^st number: 8 2/5, 2^nd number: 24/35

42/5 - 24/35 is 54/7.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 35 is 35

Next, find the equivalent fraction of both fractional numbers with denominator 35
For the 1st fraction, since 5 × 7 = 35,
42/5 = 42 × 7/5 × 7 = 294/35
Likewise, for the 2nd fraction, since 35 × 1 = 35,
24/35 = 24 × 1/35 × 1 = 24/35
Subtract the two like fractions:
294/35 - 24/35 = 294 - 24/35 = 270/35
After reducing the fraction, the answer is 54/7
In mixed form: 75/7

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad