Subtract 8/84 from 90/30
1st number: 3 0/30, 2nd number: 8/84
90/30 - 8/84 is 61/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
90/30 = 90 × 14/30 × 14 = 1260/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
8/84 = 8 × 5/84 × 5 = 40/420 - Subtract the two like fractions:
1260/420 - 40/420 = 1260 - 40/420 = 1220/420 - After reducing the fraction, the answer is 61/21
- In mixed form: 219/21
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