Subtract 40/60 from 75/70
1st number: 1 5/70, 2nd number: 40/60
75/70 - 40/60 is 17/42.
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,
75/70 = 75 × 6/70 × 6 = 450/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
40/60 = 40 × 7/60 × 7 = 280/420 - Subtract the two like fractions:
450/420 - 280/420 = 450 - 280/420 = 170/420 - After reducing the fraction, the answer is 17/42
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