Subtract 3/30 from 42/28, Solve 1 14/28

Subtract 3/30 from 42/28

1^st number: 1 14/28, 2^nd number: 3/30

42/28 - 3/30 is 7/5.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 30 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 28 × 15 = 420,
42/28 = 42 × 15/28 × 15 = 630/420
Likewise, for the 2nd fraction, since 30 × 14 = 420,
3/30 = 3 × 14/30 × 14 = 42/420
Subtract the two like fractions:
630/420 - 42/420 = 630 - 42/420 = 588/420
After reducing the fraction, the answer is 7/5
In mixed form: 12/5

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