Subtract 10/63 from 72/10, Solve 7 2/10

Subtract 10/63 from 72/10

1^st number: 7 2/10, 2^nd number: 10/63

72/10 - 10/63 is 2218/315.

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,
72/10 = 72 × 63/10 × 63 = 4536/630
Likewise, for the 2nd fraction, since 63 × 10 = 630,
10/63 = 10 × 10/63 × 10 = 100/630
Subtract the two like fractions:
4536/630 - 100/630 = 4536 - 100/630 = 4436/630
After reducing the fraction, the answer is 2218/315
In mixed form: 713/315

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