Subtract 24/42 from 27/10, Solve 2 7/10

Subtract 24/42 from 27/10

1^st number: 2 7/10, 2^nd number: 24/42

27/10 - 24/42 is 149/70.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 10 × 21 = 210,
27/10 = 27 × 21/10 × 21 = 567/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
24/42 = 24 × 5/42 × 5 = 120/210
Subtract the two like fractions:
567/210 - 120/210 = 567 - 120/210 = 447/210
After reducing the fraction, the answer is 149/70
In mixed form: 29/70

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