Add 81/54 and 63/7
1st number: 1 27/54, 2nd number: 9 0/7
81/54 + 63/7 is 21/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 7 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
81/54 = 81 × 7/54 × 7 = 567/378 - Likewise, for the 2nd fraction, since 7 × 54 = 378,
63/7 = 63 × 54/7 × 54 = 3402/378 - Add the two like fractions:
567/378 + 3402/378 = 567 + 3402/378 = 3969/378 - 3969/378 simplified gives 21/2
- So, 81/54 + 63/7 = 21/2
In mixed form: 101/2
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