Subtract 5/12 from 28/70, Solve 28/70

Subtract 5/12 from 28/70

28/70 - 5/12 is -1/60.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 12 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 70 × 6 = 420,
28/70 = 28 × 6/70 × 6 = 168/420
Likewise, for the 2nd fraction, since 12 × 35 = 420,
5/12 = 5 × 35/12 × 35 = 175/420
Subtract the two like fractions:
168/420 - 175/420 = 168 - 175/420 = -7/420
After reducing the fraction, the answer is -1/60

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