Subtract 90/12 from 10/25, Solve 10/25

Subtract 90/12 from 10/25

1^st number: 10/25, 2^nd number: 7 6/12

10/25 - 90/12 is -71/10.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 12 is 300

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 25 × 12 = 300,
10/25 = 10 × 12/25 × 12 = 120/300
Likewise, for the 2nd fraction, since 12 × 25 = 300,
90/12 = 90 × 25/12 × 25 = 2250/300
Subtract the two like fractions:
120/300 - 2250/300 = 120 - 2250/300 = -2130/300
After reducing the fraction, the answer is -71/10

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