Subtract 3/30 from 70/40
1st number: 1 30/40, 2nd number: 3/30
70/40 - 3/30 is 33/20.
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,
70/40 = 70 × 3/40 × 3 = 210/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
3/30 = 3 × 4/30 × 4 = 12/120 - Subtract the two like fractions:
210/120 - 12/120 = 210 - 12/120 = 198/120 - After reducing the fraction, the answer is 33/20
- In mixed form: 113/20
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