Add 72/54 and 21/18
1st number: 1 18/54, 2nd number: 1 3/18
72/54 + 21/18 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 18 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 54 × 1 = 54,
72/54 = 72 × 1/54 × 1 = 72/54 - Likewise, for the 2nd fraction, since 18 × 3 = 54,
21/18 = 21 × 3/18 × 3 = 63/54 - Add the two like fractions:
72/54 + 63/54 = 72 + 63/54 = 135/54 - 135/54 simplified gives 5/2
- So, 72/54 + 21/18 = 5/2
In mixed form: 21/2
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