Subtract 6/45 from 27/10, Solve 2 7/10

Subtract 6/45 from 27/10

1^st number: 2 7/10, 2^nd number: 6/45

27/10 - 6/45 is 77/30.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 45 is 90

Next, find the equivalent fraction of both fractional numbers with denominator 90
For the 1st fraction, since 10 × 9 = 90,
27/10 = 27 × 9/10 × 9 = 243/90
Likewise, for the 2nd fraction, since 45 × 2 = 90,
6/45 = 6 × 2/45 × 2 = 12/90
Subtract the two like fractions:
243/90 - 12/90 = 243 - 12/90 = 231/90
After reducing the fraction, the answer is 77/30
In mixed form: 217/30

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