Subtract 30/9 from 10/42
1st number: 10/42, 2nd number: 3 3/9
10/42 - 30/9 is -65/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
10/42 = 10 × 3/42 × 3 = 30/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
30/9 = 30 × 14/9 × 14 = 420/126 - Subtract the two like fractions:
30/126 - 420/126 = 30 - 420/126 = -390/126 - After reducing the fraction, the answer is -65/21
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