Subtract 30/7 from 4/60, Solve 4/60

Subtract 30/7 from 4/60

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

4/60 - 30/7 is -443/105.

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,
4/60 = 4 × 7/60 × 7 = 28/420
Likewise, for the 2nd fraction, since 7 × 60 = 420,
30/7 = 30 × 60/7 × 60 = 1800/420
Subtract the two like fractions:
28/420 - 1800/420 = 28 - 1800/420 = -1772/420
After reducing the fraction, the answer is -443/105

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