Subtract 63/27 from 20/10, Solve 2 0/10

Subtract 63/27 from 20/10

1^st number: 2 0/10, 2^nd number: 2 9/27

20/10 - 63/27 is -1/3.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 27 is 270

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 10 × 27 = 270,
20/10 = 20 × 27/10 × 27 = 540/270
Likewise, for the 2nd fraction, since 27 × 10 = 270,
63/27 = 63 × 10/27 × 10 = 630/270
Subtract the two like fractions:
540/270 - 630/270 = 540 - 630/270 = -90/270
After reducing the fraction, the answer is -1/3

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