Subtract 56/21 from 56/30, Solve 1 26/30

Subtract 56/21 from 56/30

1^st number: 1 26/30, 2^nd number: 2 14/21

56/30 - 56/21 is -4/5.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 21 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 30 × 7 = 210,
56/30 = 56 × 7/30 × 7 = 392/210
Likewise, for the 2nd fraction, since 21 × 10 = 210,
56/21 = 56 × 10/21 × 10 = 560/210
Subtract the two like fractions:
392/210 - 560/210 = 392 - 560/210 = -168/210
After reducing the fraction, the answer is -4/5

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