Subtract 18/84 from 54/40, Solve 1 14/40

Subtract 18/84 from 54/40

1^st number: 1 14/40, 2^nd number: 18/84

54/40 - 18/84 is 159/140.

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,
54/40 = 54 × 21/40 × 21 = 1134/840
Likewise, for the 2nd fraction, since 84 × 10 = 840,
18/84 = 18 × 10/84 × 10 = 180/840
Subtract the two like fractions:
1134/840 - 180/840 = 1134 - 180/840 = 954/840
After reducing the fraction, the answer is 159/140
In mixed form: 119/140

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