Subtract 20/40 from 28/12, Solve 2 4/12

Subtract 20/40 from 28/12

1^st number: 2 4/12, 2^nd number: 20/40

28/12 - 20/40 is 11/6.

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

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 12 × 10 = 120,
28/12 = 28 × 10/12 × 10 = 280/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
20/40 = 20 × 3/40 × 3 = 60/120
Subtract the two like fractions:
280/120 - 60/120 = 280 - 60/120 = 220/120
After reducing the fraction, the answer is 11/6
In mixed form: 15/6

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