Subtract 30/21 from 90/16
1st number: 5 10/16, 2nd number: 1 9/21
90/16 - 30/21 is 235/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 21 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
90/16 = 90 × 21/16 × 21 = 1890/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
30/21 = 30 × 16/21 × 16 = 480/336 - Subtract the two like fractions:
1890/336 - 480/336 = 1890 - 480/336 = 1410/336 - After reducing the fraction, the answer is 235/56
- In mixed form: 411/56
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