Subtract 2/27 from 70/20, Solve 3 10/20

Subtract 2/27 from 70/20

1^st number: 3 10/20, 2^nd number: 2/27

70/20 - 2/27 is 185/54.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 27 is 540

Next, find the equivalent fraction of both fractional numbers with denominator 540
For the 1st fraction, since 20 × 27 = 540,
70/20 = 70 × 27/20 × 27 = 1890/540
Likewise, for the 2nd fraction, since 27 × 20 = 540,
2/27 = 2 × 20/27 × 20 = 40/540
Subtract the two like fractions:
1890/540 - 40/540 = 1890 - 40/540 = 1850/540
After reducing the fraction, the answer is 185/54
In mixed form: 323/54

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