Subtract 30/84 from 70/27, Solve 2 16/27

Subtract 30/84 from 70/27

1^st number: 2 16/27, 2^nd number: 30/84

70/27 - 30/84 is 845/378.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 84 is 756

Next, find the equivalent fraction of both fractional numbers with denominator 756
For the 1st fraction, since 27 × 28 = 756,
70/27 = 70 × 28/27 × 28 = 1960/756
Likewise, for the 2nd fraction, since 84 × 9 = 756,
30/84 = 30 × 9/84 × 9 = 270/756
Subtract the two like fractions:
1960/756 - 270/756 = 1960 - 270/756 = 1690/756
After reducing the fraction, the answer is 845/378
In mixed form: 289/378

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