Subtract 5/8 from 80/21
1st number: 3 17/21, 2nd number: 5/8
80/21 - 5/8 is 535/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
80/21 = 80 × 8/21 × 8 = 640/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
5/8 = 5 × 21/8 × 21 = 105/168 - Subtract the two like fractions:
640/168 - 105/168 = 640 - 105/168 = 535/168 - In mixed form: 331/168
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