Subtract 27/84 from 70/30
1st number: 2 10/30, 2nd number: 27/84
70/30 - 27/84 is 169/84.
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,
70/30 = 70 × 14/30 × 14 = 980/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
27/84 = 27 × 5/84 × 5 = 135/420 - Subtract the two like fractions:
980/420 - 135/420 = 980 - 135/420 = 845/420 - After reducing the fraction, the answer is 169/84
- In mixed form: 21/84
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