Subtract 70/80 from 98/21
1st number: 4 14/21, 2nd number: 70/80
98/21 - 70/80 is 91/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 21 × 80 = 1680,
98/21 = 98 × 80/21 × 80 = 7840/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
70/80 = 70 × 21/80 × 21 = 1470/1680 - Subtract the two like fractions:
7840/1680 - 1470/1680 = 7840 - 1470/1680 = 6370/1680 - After reducing the fraction, the answer is 91/24
- In mixed form: 319/24
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