Subtract 30/20 from 7/10
1st number: 7/10, 2nd number: 1 10/20
7/10 - 30/20 is -4/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
7/10 = 7 × 2/10 × 2 = 14/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
30/20 = 30 × 1/20 × 1 = 30/20 - Subtract the two like fractions:
14/20 - 30/20 = 14 - 30/20 = -16/20 - After reducing the fraction, the answer is -4/5
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