Subtract 70/60 from 15/70
1st number: 15/70, 2nd number: 1 10/60
15/70 - 70/60 is -20/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
15/70 = 15 × 6/70 × 6 = 90/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
70/60 = 70 × 7/60 × 7 = 490/420 - Subtract the two like fractions:
90/420 - 490/420 = 90 - 490/420 = -400/420 - After reducing the fraction, the answer is -20/21
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