Subtract 21/35 from 28/9, Solve 3 1/9

Subtract 21/35 from 28/9

1^st number: 3 1/9, 2^nd number: 21/35

28/9 - 21/35 is 113/45.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 35 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 9 × 35 = 315,
28/9 = 28 × 35/9 × 35 = 980/315
Likewise, for the 2nd fraction, since 35 × 9 = 315,
21/35 = 21 × 9/35 × 9 = 189/315
Subtract the two like fractions:
980/315 - 189/315 = 980 - 189/315 = 791/315
After reducing the fraction, the answer is 113/45
In mixed form: 223/45

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