Subtract 42/84 from 70/5
1st number: 14 0/5, 2nd number: 42/84
70/5 - 42/84 is 27/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 5 × 84 = 420,
70/5 = 70 × 84/5 × 84 = 5880/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
42/84 = 42 × 5/84 × 5 = 210/420 - Subtract the two like fractions:
5880/420 - 210/420 = 5880 - 210/420 = 5670/420 - After reducing the fraction, the answer is 27/2
- In mixed form: 131/2
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