Subtract 40/20 from 90/49
1st number: 1 41/49, 2nd number: 2 0/20
90/49 - 40/20 is -8/49.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 20 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 49 × 20 = 980,
90/49 = 90 × 20/49 × 20 = 1800/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
40/20 = 40 × 49/20 × 49 = 1960/980 - Subtract the two like fractions:
1800/980 - 1960/980 = 1800 - 1960/980 = -160/980 - After reducing the fraction, the answer is -8/49
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