Subtract 15/30 from 28/10, Solve 2 8/10

Subtract 15/30 from 28/10

1^st number: 2 8/10, 2^nd number: 15/30

28/10 - 15/30 is 23/10.

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,
28/10 = 28 × 3/10 × 3 = 84/30
Likewise, for the 2nd fraction, since 30 × 1 = 30,
15/30 = 15 × 1/30 × 1 = 15/30
Subtract the two like fractions:
84/30 - 15/30 = 84 - 15/30 = 69/30
After reducing the fraction, the answer is 23/10
In mixed form: 23/10

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