Subtract 98/80 from 12/20
1st number: 12/20, 2nd number: 1 18/80
12/20 - 98/80 is -5/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
12/20 = 12 × 4/20 × 4 = 48/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
98/80 = 98 × 1/80 × 1 = 98/80 - Subtract the two like fractions:
48/80 - 98/80 = 48 - 98/80 = -50/80 - After reducing the fraction, the answer is -5/8
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