Subtract 12/10 from 45/21, Solve 2 3/21

Subtract 12/10 from 45/21

1^st number: 2 3/21, 2^nd number: 1 2/10

45/21 - 12/10 is 33/35.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 10 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 21 × 10 = 210,
45/21 = 45 × 10/21 × 10 = 450/210
Likewise, for the 2nd fraction, since 10 × 21 = 210,
12/10 = 12 × 21/10 × 21 = 252/210
Subtract the two like fractions:
450/210 - 252/210 = 450 - 252/210 = 198/210
After reducing the fraction, the answer is 33/35

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