Subtract 30/63 from 1/28, Solve 1/28

Subtract 30/63 from 1/28

1/28 - 30/63 is -37/84.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 63 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 28 × 9 = 252,
1/28 = 1 × 9/28 × 9 = 9/252
Likewise, for the 2nd fraction, since 63 × 4 = 252,
30/63 = 30 × 4/63 × 4 = 120/252
Subtract the two like fractions:
9/252 - 120/252 = 9 - 120/252 = -111/252
After reducing the fraction, the answer is -37/84

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