Subtract 2/40 from 90/30
1st number: 3 0/30, 2nd number: 2/40
90/30 - 2/40 is 59/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
90/30 = 90 × 4/30 × 4 = 360/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
2/40 = 2 × 3/40 × 3 = 6/120 - Subtract the two like fractions:
360/120 - 6/120 = 360 - 6/120 = 354/120 - After reducing the fraction, the answer is 59/20
- In mixed form: 219/20
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