Subtract 21/8 from 21/3, Solve 7 0/3

Subtract 21/8 from 21/3

1^st number: 7 0/3, 2^nd number: 2 5/8

21/3 - 21/8 is 35/8.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 8 is 24

Next, find the equivalent fraction of both fractional numbers with denominator 24
For the 1st fraction, since 3 × 8 = 24,
21/3 = 21 × 8/3 × 8 = 168/24
Likewise, for the 2nd fraction, since 8 × 3 = 24,
21/8 = 21 × 3/8 × 3 = 63/24
Subtract the two like fractions:
168/24 - 63/24 = 168 - 63/24 = 105/24
After reducing the fraction, the answer is 35/8
In mixed form: 43/8

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