Subtract 4/40 from 40/28, Solve 1 12/28

Subtract 4/40 from 40/28

1^st number: 1 12/28, 2^nd number: 4/40

40/28 - 4/40 is 93/70.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280

Next, find the equivalent fraction of both fractional numbers with denominator 280
For the 1st fraction, since 28 × 10 = 280,
40/28 = 40 × 10/28 × 10 = 400/280
Likewise, for the 2nd fraction, since 40 × 7 = 280,
4/40 = 4 × 7/40 × 7 = 28/280
Subtract the two like fractions:
400/280 - 28/280 = 400 - 28/280 = 372/280
After reducing the fraction, the answer is 93/70
In mixed form: 123/70

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