Subtract 90/24 from 3/70, Solve 3/70

Subtract 90/24 from 3/70

1^st number: 3/70, 2^nd number: 3 18/24

3/70 - 90/24 is -519/140.

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,
3/70 = 3 × 12/70 × 12 = 36/840
Likewise, for the 2nd fraction, since 24 × 35 = 840,
90/24 = 90 × 35/24 × 35 = 3150/840
Subtract the two like fractions:
36/840 - 3150/840 = 36 - 3150/840 = -3114/840
After reducing the fraction, the answer is -519/140

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