Subtract 90/10 from 70/84
1st number: 70/84, 2nd number: 9 0/10
70/84 - 90/10 is -49/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 10 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
70/84 = 70 × 5/84 × 5 = 350/420 - Likewise, for the 2nd fraction, since 10 × 42 = 420,
90/10 = 90 × 42/10 × 42 = 3780/420 - Subtract the two like fractions:
350/420 - 3780/420 = 350 - 3780/420 = -3430/420 - After reducing the fraction, the answer is -49/6
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