Subtract 30/42 from 20/2, Solve 10 0/2

Subtract 30/42 from 20/2

1^st number: 10 0/2, 2^nd number: 30/42

20/2 - 30/42 is 65/7.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 42 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 2 × 21 = 42,
20/2 = 20 × 21/2 × 21 = 420/42
Likewise, for the 2nd fraction, since 42 × 1 = 42,
30/42 = 30 × 1/42 × 1 = 30/42
Subtract the two like fractions:
420/42 - 30/42 = 420 - 30/42 = 390/42
After reducing the fraction, the answer is 65/7
In mixed form: 92/7

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