Subtract 30/10 from 50/63, Solve 50/63

Subtract 30/10 from 50/63

1^st number: 50/63, 2^nd number: 3 0/10

50/63 - 30/10 is -139/63.

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

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 63 × 10 = 630,
50/63 = 50 × 10/63 × 10 = 500/630
Likewise, for the 2nd fraction, since 10 × 63 = 630,
30/10 = 30 × 63/10 × 63 = 1890/630
Subtract the two like fractions:
500/630 - 1890/630 = 500 - 1890/630 = -1390/630
After reducing the fraction, the answer is -139/63

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