Subtract 1/63 from 54/20, Solve 2 14/20

Subtract 1/63 from 54/20

1^st number: 2 14/20, 2^nd number: 1/63

54/20 - 1/63 is 1691/630.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260

Next, find the equivalent fraction of both fractional numbers with denominator 1260
For the 1st fraction, since 20 × 63 = 1260,
54/20 = 54 × 63/20 × 63 = 3402/1260
Likewise, for the 2nd fraction, since 63 × 20 = 1260,
1/63 = 1 × 20/63 × 20 = 20/1260
Subtract the two like fractions:
3402/1260 - 20/1260 = 3402 - 20/1260 = 3382/1260
After reducing the fraction, the answer is 1691/630
In mixed form: 2431/630

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