Subtract 72/35 from 15/70
1st number: 15/70, 2nd number: 2 2/35
15/70 - 72/35 is -129/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 35 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
15/70 = 15 × 1/70 × 1 = 15/70 - Likewise, for the 2nd fraction, since 35 × 2 = 70,
72/35 = 72 × 2/35 × 2 = 144/70 - Subtract the two like fractions:
15/70 - 144/70 = 15 - 144/70 = -129/70
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