Subtract 63/70 from 80/28, Solve 2 24/28

Subtract 63/70 from 80/28

1^st number: 2 24/28, 2^nd number: 63/70

80/28 - 63/70 is 137/70.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 70 is 140

Next, find the equivalent fraction of both fractional numbers with denominator 140
For the 1st fraction, since 28 × 5 = 140,
80/28 = 80 × 5/28 × 5 = 400/140
Likewise, for the 2nd fraction, since 70 × 2 = 140,
63/70 = 63 × 2/70 × 2 = 126/140
Subtract the two like fractions:
400/140 - 126/140 = 400 - 126/140 = 274/140
After reducing the fraction, the answer is 137/70
In mixed form: 167/70

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