Subtract 18/10 from 27/70
1st number: 27/70, 2nd number: 1 8/10
27/70 - 18/10 is -99/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
27/70 = 27 × 1/70 × 1 = 27/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
18/10 = 18 × 7/10 × 7 = 126/70 - Subtract the two like fractions:
27/70 - 126/70 = 27 - 126/70 = -99/70
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