Subtract 6/12 from 90/40, Solve 2 10/40

Subtract 6/12 from 90/40

1^st number: 2 10/40, 2^nd number: 6/12

90/40 - 6/12 is 7/4.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 12 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 40 × 3 = 120,
90/40 = 90 × 3/40 × 3 = 270/120
Likewise, for the 2nd fraction, since 12 × 10 = 120,
6/12 = 6 × 10/12 × 10 = 60/120
Subtract the two like fractions:
270/120 - 60/120 = 270 - 60/120 = 210/120
After reducing the fraction, the answer is 7/4
In mixed form: 13/4

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