Subtract 5/63 from 70/30, Solve 2 10/30

Subtract 5/63 from 70/30

1^st number: 2 10/30, 2^nd number: 5/63

70/30 - 5/63 is 142/63.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 63 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 30 × 21 = 630,
70/30 = 70 × 21/30 × 21 = 1470/630
Likewise, for the 2nd fraction, since 63 × 10 = 630,
5/63 = 5 × 10/63 × 10 = 50/630
Subtract the two like fractions:
1470/630 - 50/630 = 1470 - 50/630 = 1420/630
After reducing the fraction, the answer is 142/63
In mixed form: 216/63

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