Subtract 18/49 from 42/20
1st number: 2 2/20, 2nd number: 18/49
42/20 - 18/49 is 849/490.
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,
18/49 = 18 × 20/49 × 20 = 360/980 - Subtract the two like fractions:
2058/980 - 360/980 = 2058 - 360/980 = 1698/980 - After reducing the fraction, the answer is 849/490
- In mixed form: 1359/490
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