Subtract 72/6 from 25/40, Solve 25/40

Subtract 72/6 from 25/40

1^st number: 25/40, 2^nd number: 12 0/6

25/40 - 72/6 is -91/8.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 6 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 40 × 3 = 120,
25/40 = 25 × 3/40 × 3 = 75/120
Likewise, for the 2nd fraction, since 6 × 20 = 120,
72/6 = 72 × 20/6 × 20 = 1440/120
Subtract the two like fractions:
75/120 - 1440/120 = 75 - 1440/120 = -1365/120
After reducing the fraction, the answer is -91/8

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