Subtract 40/49 from 42/20
1st number: 2 2/20, 2nd number: 40/49
42/20 - 40/49 is 629/490.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 49 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 20 × 49 = 980,
42/20 = 42 × 49/20 × 49 = 2058/980 - Likewise, for the 2nd fraction, since 49 × 20 = 980,
40/49 = 40 × 20/49 × 20 = 800/980 - Subtract the two like fractions:
2058/980 - 800/980 = 2058 - 800/980 = 1258/980 - After reducing the fraction, the answer is 629/490
- In mixed form: 1139/490
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