Subtract 9/30 from 80/40
1st number: 2 0/40, 2nd number: 9/30
80/40 - 9/30 is 17/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
80/40 = 80 × 3/40 × 3 = 240/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
9/30 = 9 × 4/30 × 4 = 36/120 - Subtract the two like fractions:
240/120 - 36/120 = 240 - 36/120 = 204/120 - After reducing the fraction, the answer is 17/10
- In mixed form: 17/10
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