Subtract 2/84 from 60/40, Solve 1 20/40

Subtract 2/84 from 60/40

1^st number: 1 20/40, 2^nd number: 2/84

60/40 - 2/84 is 31/21.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 84 is 840

Next, find the equivalent fraction of both fractional numbers with denominator 840
For the 1st fraction, since 40 × 21 = 840,
60/40 = 60 × 21/40 × 21 = 1260/840
Likewise, for the 2nd fraction, since 84 × 10 = 840,
2/84 = 2 × 10/84 × 10 = 20/840
Subtract the two like fractions:
1260/840 - 20/840 = 1260 - 20/840 = 1240/840
After reducing the fraction, the answer is 31/21
In mixed form: 110/21

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