Subtract 21/42 from 56/30, Solve 1 26/30

Subtract 21/42 from 56/30

1^st number: 1 26/30, 2^nd number: 21/42

56/30 - 21/42 is 41/30.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 42 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 42 × 5 = 210,
21/42 = 21 × 5/42 × 5 = 105/210
Subtract the two like fractions:
392/210 - 105/210 = 392 - 105/210 = 287/210
After reducing the fraction, the answer is 41/30
In mixed form: 111/30

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