Subtract 30/40 from 42/9
1st number: 4 6/9, 2nd number: 30/40
42/9 - 30/40 is 47/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 9 × 40 = 360,
42/9 = 42 × 40/9 × 40 = 1680/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
30/40 = 30 × 9/40 × 9 = 270/360 - Subtract the two like fractions:
1680/360 - 270/360 = 1680 - 270/360 = 1410/360 - After reducing the fraction, the answer is 47/12
- In mixed form: 311/12
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