Subtract 3/84 from 49/20, Solve 2 9/20

Subtract 3/84 from 49/20

1^st number: 2 9/20, 2^nd number: 3/84

49/20 - 3/84 is 169/70.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 84 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 20 × 21 = 420,
49/20 = 49 × 21/20 × 21 = 1029/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
3/84 = 3 × 5/84 × 5 = 15/420
Subtract the two like fractions:
1029/420 - 15/420 = 1029 - 15/420 = 1014/420
After reducing the fraction, the answer is 169/70
In mixed form: 229/70

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