Subtract 42/80 from 28/2, Solve 14 0/2

Subtract 42/80 from 28/2

1^st number: 14 0/2, 2^nd number: 42/80

28/2 - 42/80 is 539/40.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 80 is 80

Next, find the equivalent fraction of both fractional numbers with denominator 80
For the 1st fraction, since 2 × 40 = 80,
28/2 = 28 × 40/2 × 40 = 1120/80
Likewise, for the 2nd fraction, since 80 × 1 = 80,
42/80 = 42 × 1/80 × 1 = 42/80
Subtract the two like fractions:
1120/80 - 42/80 = 1120 - 42/80 = 1078/80
After reducing the fraction, the answer is 539/40
In mixed form: 1319/40

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