Subtract 90/70 from 10/24, Solve 10/24

Subtract 90/70 from 10/24

1^st number: 10/24, 2^nd number: 1 20/70

10/24 - 90/70 is -73/84.

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 70 is 840

Next, find the equivalent fraction of both fractional numbers with denominator 840
For the 1st fraction, since 24 × 35 = 840,
10/24 = 10 × 35/24 × 35 = 350/840
Likewise, for the 2nd fraction, since 70 × 12 = 840,
90/70 = 90 × 12/70 × 12 = 1080/840
Subtract the two like fractions:
350/840 - 1080/840 = 350 - 1080/840 = -730/840
After reducing the fraction, the answer is -73/84

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