Subtract 9/42 from 21/16
1st number: 1 5/16, 2nd number: 9/42
21/16 - 9/42 is 123/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 42 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
21/16 = 21 × 21/16 × 21 = 441/336 - Likewise, for the 2nd fraction, since 42 × 8 = 336,
9/42 = 9 × 8/42 × 8 = 72/336 - Subtract the two like fractions:
441/336 - 72/336 = 441 - 72/336 = 369/336 - After reducing the fraction, the answer is 123/112
- In mixed form: 111/112
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