Subtract 1/30 from 90/84
1st number: 1 6/84, 2nd number: 1/30
90/84 - 1/30 is 109/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
90/84 = 90 × 5/84 × 5 = 450/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
1/30 = 1 × 14/30 × 14 = 14/420 - Subtract the two like fractions:
450/420 - 14/420 = 450 - 14/420 = 436/420 - After reducing the fraction, the answer is 109/105
- In mixed form: 14/105
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