Subtract 90/63 from 54/10, Solve 5 4/10

Subtract 90/63 from 54/10

1^st number: 5 4/10, 2^nd number: 1 27/63

54/10 - 90/63 is 139/35.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 63 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 10 × 63 = 630,
54/10 = 54 × 63/10 × 63 = 3402/630
Likewise, for the 2nd fraction, since 63 × 10 = 630,
90/63 = 90 × 10/63 × 10 = 900/630
Subtract the two like fractions:
3402/630 - 900/630 = 3402 - 900/630 = 2502/630
After reducing the fraction, the answer is 139/35
In mixed form: 334/35

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