Subtract 30/40 from 18/5
1st number: 3 3/5, 2nd number: 30/40
18/5 - 30/40 is 57/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
18/5 = 18 × 8/5 × 8 = 144/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
30/40 = 30 × 1/40 × 1 = 30/40 - Subtract the two like fractions:
144/40 - 30/40 = 144 - 30/40 = 114/40 - After reducing the fraction, the answer is 57/20
- In mixed form: 217/20
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