Subtract 3/80 from 35/28, Solve 1 7/28

Subtract 3/80 from 35/28

1^st number: 1 7/28, 2^nd number: 3/80

35/28 - 3/80 is 97/80.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 80 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 28 × 20 = 560,
35/28 = 35 × 20/28 × 20 = 700/560
Likewise, for the 2nd fraction, since 80 × 7 = 560,
3/80 = 3 × 7/80 × 7 = 21/560
Subtract the two like fractions:
700/560 - 21/560 = 700 - 21/560 = 679/560
After reducing the fraction, the answer is 97/80
In mixed form: 117/80

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