Subtract 42/9 from 36/10
1st number: 3 6/10, 2nd number: 4 6/9
36/10 - 42/9 is -16/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
36/10 = 36 × 9/10 × 9 = 324/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
42/9 = 42 × 10/9 × 10 = 420/90 - Subtract the two like fractions:
324/90 - 420/90 = 324 - 420/90 = -96/90 - After reducing the fraction, the answer is -16/15
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