Subtract 30/4 from 42/9
1st number: 4 6/9, 2nd number: 7 2/4
42/9 - 30/4 is -17/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
42/9 = 42 × 4/9 × 4 = 168/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
30/4 = 30 × 9/4 × 9 = 270/36 - Subtract the two like fractions:
168/36 - 270/36 = 168 - 270/36 = -102/36 - After reducing the fraction, the answer is -17/6
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