Subtract 90/80 from 28/12
1st number: 2 4/12, 2nd number: 1 10/80
28/12 - 90/80 is 29/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 12 × 20 = 240,
28/12 = 28 × 20/12 × 20 = 560/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
90/80 = 90 × 3/80 × 3 = 270/240 - Subtract the two like fractions:
560/240 - 270/240 = 560 - 270/240 = 290/240 - After reducing the fraction, the answer is 29/24
- In mixed form: 15/24
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