Subtract 70/80 from 12/4
1st number: 3 0/4, 2nd number: 70/80
12/4 - 70/80 is 17/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 4 × 20 = 80,
12/4 = 12 × 20/4 × 20 = 240/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
70/80 = 70 × 1/80 × 1 = 70/80 - Subtract the two like fractions:
240/80 - 70/80 = 240 - 70/80 = 170/80 - After reducing the fraction, the answer is 17/8
- In mixed form: 21/8
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