Subtract 28/90 from 21/16
1st number: 1 5/16, 2nd number: 28/90
21/16 - 28/90 is 721/720.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
21/16 = 21 × 45/16 × 45 = 945/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
28/90 = 28 × 8/90 × 8 = 224/720 - Subtract the two like fractions:
945/720 - 224/720 = 945 - 224/720 = 721/720 - In mixed form: 11/720
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