Subtract 90/49 from 63/20
1st number: 3 3/20, 2nd number: 1 41/49
63/20 - 90/49 is 1287/980.
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,
63/20 = 63 × 49/20 × 49 = 3087/980 - Likewise, for the 2nd fraction, since 49 × 20 = 980,
90/49 = 90 × 20/49 × 20 = 1800/980 - Subtract the two like fractions:
3087/980 - 1800/980 = 3087 - 1800/980 = 1287/980 - In mixed form: 1307/980
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