Subtract 98/84 from 90/70
1st number: 1 20/70, 2nd number: 1 14/84
90/70 - 98/84 is 5/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
90/70 = 90 × 6/70 × 6 = 540/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
98/84 = 98 × 5/84 × 5 = 490/420 - Subtract the two like fractions:
540/420 - 490/420 = 540 - 490/420 = 50/420 - After reducing the fraction, the answer is 5/42
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