Subtract 24/28 from 7/30, Solve 7/30

Subtract 24/28 from 7/30

7/30 - 24/28 is -131/210.

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

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 30 × 14 = 420,
7/30 = 7 × 14/30 × 14 = 98/420
Likewise, for the 2nd fraction, since 28 × 15 = 420,
24/28 = 24 × 15/28 × 15 = 360/420
Subtract the two like fractions:
98/420 - 360/420 = 98 - 360/420 = -262/420
After reducing the fraction, the answer is -131/210

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