Subtract 2/5 from 80/42
1st number: 1 38/42, 2nd number: 2/5
80/42 - 2/5 is 158/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 5 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
80/42 = 80 × 5/42 × 5 = 400/210 - Likewise, for the 2nd fraction, since 5 × 42 = 210,
2/5 = 2 × 42/5 × 42 = 84/210 - Subtract the two like fractions:
400/210 - 84/210 = 400 - 84/210 = 316/210 - After reducing the fraction, the answer is 158/105
- In mixed form: 153/105
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