Subtract 1/80 from 35/21, Solve 1 14/21

Subtract 1/80 from 35/21

1^st number: 1 14/21, 2^nd number: 1/80

35/21 - 1/80 is 397/240.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 80 is 1680

Next, find the equivalent fraction of both fractional numbers with denominator 1680
For the 1st fraction, since 21 × 80 = 1680,
35/21 = 35 × 80/21 × 80 = 2800/1680
Likewise, for the 2nd fraction, since 80 × 21 = 1680,
1/80 = 1 × 21/80 × 21 = 21/1680
Subtract the two like fractions:
2800/1680 - 21/1680 = 2800 - 21/1680 = 2779/1680
After reducing the fraction, the answer is 397/240
In mixed form: 1157/240

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