Subtract 10/45 from 80/70, Solve 1 10/70

Subtract 10/45 from 80/70

1^st number: 1 10/70, 2^nd number: 10/45

80/70 - 10/45 is 58/63.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 45 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 70 × 9 = 630,
80/70 = 80 × 9/70 × 9 = 720/630
Likewise, for the 2nd fraction, since 45 × 14 = 630,
10/45 = 10 × 14/45 × 14 = 140/630
Subtract the two like fractions:
720/630 - 140/630 = 720 - 140/630 = 580/630
After reducing the fraction, the answer is 58/63

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