Subtract 70/60 from 28/56, Solve 28/56

Subtract 70/60 from 28/56

1^st number: 28/56, 2^nd number: 1 10/60

28/56 - 70/60 is -2/3.

Find the least common denominator or LCM of the two denominators:
LCM of 56 and 60 is 840

Next, find the equivalent fraction of both fractional numbers with denominator 840
For the 1st fraction, since 56 × 15 = 840,
28/56 = 28 × 15/56 × 15 = 420/840
Likewise, for the 2nd fraction, since 60 × 14 = 840,
70/60 = 70 × 14/60 × 14 = 980/840
Subtract the two like fractions:
420/840 - 980/840 = 420 - 980/840 = -560/840
After reducing the fraction, the answer is -2/3

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