Subtract 30/25 from 90/12, Solve 7 6/12

Subtract 30/25 from 90/12

1^st number: 7 6/12, 2^nd number: 1 5/25

90/12 - 30/25 is 63/10.

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

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 12 × 25 = 300,
90/12 = 90 × 25/12 × 25 = 2250/300
Likewise, for the 2nd fraction, since 25 × 12 = 300,
30/25 = 30 × 12/25 × 12 = 360/300
Subtract the two like fractions:
2250/300 - 360/300 = 2250 - 360/300 = 1890/300
After reducing the fraction, the answer is 63/10
In mixed form: 63/10

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