Add 72/54 and 63/42
1st number: 1 18/54, 2nd number: 1 21/42
72/54 + 63/42 is 17/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 42 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
72/54 = 72 × 7/54 × 7 = 504/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
63/42 = 63 × 9/42 × 9 = 567/378 - Add the two like fractions:
504/378 + 567/378 = 504 + 567/378 = 1071/378 - 1071/378 simplified gives 17/6
- So, 72/54 + 63/42 = 17/6
In mixed form: 25/6
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