Subtract 1/84 from 70/42
1st number: 1 28/42, 2nd number: 1/84
70/42 - 1/84 is 139/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
70/42 = 70 × 2/42 × 2 = 140/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
1/84 = 1 × 1/84 × 1 = 1/84 - Subtract the two like fractions:
140/84 - 1/84 = 140 - 1/84 = 139/84 - In mixed form: 155/84
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