Subtract 45/28 from 90/12, Solve 7 6/12

Subtract 45/28 from 90/12

1^st number: 7 6/12, 2^nd number: 1 17/28

90/12 - 45/28 is 165/28.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 28 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 12 × 7 = 84,
90/12 = 90 × 7/12 × 7 = 630/84
Likewise, for the 2nd fraction, since 28 × 3 = 84,
45/28 = 45 × 3/28 × 3 = 135/84
Subtract the two like fractions:
630/84 - 135/84 = 630 - 135/84 = 495/84
After reducing the fraction, the answer is 165/28
In mixed form: 525/28

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