Subtract 15/42 from 70/60
1st number: 1 10/60, 2nd number: 15/42
70/60 - 15/42 is 17/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 42 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
70/60 = 70 × 7/60 × 7 = 490/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
15/42 = 15 × 10/42 × 10 = 150/420 - Subtract the two like fractions:
490/420 - 150/420 = 490 - 150/420 = 340/420 - After reducing the fraction, the answer is 17/21
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