Subtract 18/24 from 18/70, Solve 18/70

Subtract 18/24 from 18/70

18/70 - 18/24 is -69/140.

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

Next, find the equivalent fraction of both fractional numbers with denominator 840
For the 1st fraction, since 70 × 12 = 840,
18/70 = 18 × 12/70 × 12 = 216/840
Likewise, for the 2nd fraction, since 24 × 35 = 840,
18/24 = 18 × 35/24 × 35 = 630/840
Subtract the two like fractions:
216/840 - 630/840 = 216 - 630/840 = -414/840
After reducing the fraction, the answer is -69/140

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