Subtract 12/24 from 30/10, Solve 3 0/10

Subtract 12/24 from 30/10

1^st number: 3 0/10, 2^nd number: 12/24

30/10 - 12/24 is 5/2.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 24 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 10 × 12 = 120,
30/10 = 30 × 12/10 × 12 = 360/120
Likewise, for the 2nd fraction, since 24 × 5 = 120,
12/24 = 12 × 5/24 × 5 = 60/120
Subtract the two like fractions:
360/120 - 60/120 = 360 - 60/120 = 300/120
After reducing the fraction, the answer is 5/2
In mixed form: 21/2

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