Subtract 12/90 from 40/30
1st number: 1 10/30, 2nd number: 12/90
40/30 - 12/90 is 6/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
40/30 = 40 × 3/30 × 3 = 120/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
12/90 = 12 × 1/90 × 1 = 12/90 - Subtract the two like fractions:
120/90 - 12/90 = 120 - 12/90 = 108/90 - After reducing the fraction, the answer is 6/5
- In mixed form: 11/5
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