Subtract 42/84 from 80/2
1st number: 40 0/2, 2nd number: 42/84
80/2 - 42/84 is 79/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 2 × 42 = 84,
80/2 = 80 × 42/2 × 42 = 3360/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
42/84 = 42 × 1/84 × 1 = 42/84 - Subtract the two like fractions:
3360/84 - 42/84 = 3360 - 42/84 = 3318/84 - After reducing the fraction, the answer is 79/2
- In mixed form: 391/2
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