Subtract 70/20 from 98/40
1st number: 2 18/40, 2nd number: 3 10/20
98/40 - 70/20 is -21/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
98/40 = 98 × 1/40 × 1 = 98/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
70/20 = 70 × 2/20 × 2 = 140/40 - Subtract the two like fractions:
98/40 - 140/40 = 98 - 140/40 = -42/40 - After reducing the fraction, the answer is -21/20
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