Subtract 90/80 from 30/48
1st number: 30/48, 2nd number: 1 10/80
30/48 - 90/80 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
30/48 = 30 × 5/48 × 5 = 150/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
90/80 = 90 × 3/80 × 3 = 270/240 - Subtract the two like fractions:
150/240 - 270/240 = 150 - 270/240 = -120/240 - After reducing the fraction, the answer is -1/2
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