Subtract 25/30 from 21/10, Solve 2 1/10

Subtract 25/30 from 21/10

1^st number: 2 1/10, 2^nd number: 25/30

21/10 - 25/30 is 19/15.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 30 is 30

Next, find the equivalent fraction of both fractional numbers with denominator 30
For the 1st fraction, since 10 × 3 = 30,
21/10 = 21 × 3/10 × 3 = 63/30
Likewise, for the 2nd fraction, since 30 × 1 = 30,
25/30 = 25 × 1/30 × 1 = 25/30
Subtract the two like fractions:
63/30 - 25/30 = 63 - 25/30 = 38/30
After reducing the fraction, the answer is 19/15
In mixed form: 14/15

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