Add 21/54 and 72/49
1st number: 21/54, 2nd number: 1 23/49
21/54 + 72/49 is 1639/882.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 49 is 2646
Next, find the equivalent fraction of both fractional numbers with denominator 2646 - For the 1st fraction, since 54 × 49 = 2646,
21/54 = 21 × 49/54 × 49 = 1029/2646 - Likewise, for the 2nd fraction, since 49 × 54 = 2646,
72/49 = 72 × 54/49 × 54 = 3888/2646 - Add the two like fractions:
1029/2646 + 3888/2646 = 1029 + 3888/2646 = 4917/2646 - 4917/2646 simplified gives 1639/882
- So, 21/54 + 72/49 = 1639/882
In mixed form: 1757/882
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