Subtract 90/98 from 72/20
1st number: 3 12/20, 2nd number: 90/98
72/20 - 90/98 is 657/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 98 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 20 × 49 = 980,
72/20 = 72 × 49/20 × 49 = 3528/980 - Likewise, for the 2nd fraction, since 98 × 10 = 980,
90/98 = 90 × 10/98 × 10 = 900/980 - Subtract the two like fractions:
3528/980 - 900/980 = 3528 - 900/980 = 2628/980 - After reducing the fraction, the answer is 657/245
- In mixed form: 2167/245
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