Subtract 15/50 from 90/30
1st number: 3 0/30, 2nd number: 15/50
90/30 - 15/50 is 27/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 50 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 30 × 5 = 150,
90/30 = 90 × 5/30 × 5 = 450/150 - Likewise, for the 2nd fraction, since 50 × 3 = 150,
15/50 = 15 × 3/50 × 3 = 45/150 - Subtract the two like fractions:
450/150 - 45/150 = 450 - 45/150 = 405/150 - After reducing the fraction, the answer is 27/10
- In mixed form: 27/10
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