Subtract 28/7 from 1/60, Solve 1/60

Subtract 28/7 from 1/60

1^st number: 1/60, 2^nd number: 4 0/7

1/60 - 28/7 is -239/60.

Find the least common denominator or LCM of the two denominators:
LCM of 60 and 7 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 60 × 7 = 420,
1/60 = 1 × 7/60 × 7 = 7/420
Likewise, for the 2nd fraction, since 7 × 60 = 420,
28/7 = 28 × 60/7 × 60 = 1680/420
Subtract the two like fractions:
7/420 - 1680/420 = 7 - 1680/420 = -1673/420
After reducing the fraction, the answer is -239/60

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