Subtract 20/16 from 42/9
1st number: 4 6/9, 2nd number: 1 4/16
42/9 - 20/16 is 41/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 9 × 16 = 144,
42/9 = 42 × 16/9 × 16 = 672/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
20/16 = 20 × 9/16 × 9 = 180/144 - Subtract the two like fractions:
672/144 - 180/144 = 672 - 180/144 = 492/144 - After reducing the fraction, the answer is 41/12
- In mixed form: 35/12
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