Add 63/54 and 81/42
1st number: 1 9/54, 2nd number: 1 39/42
63/54 + 81/42 is 65/21.
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,
63/54 = 63 × 7/54 × 7 = 441/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
81/42 = 81 × 9/42 × 9 = 729/378 - Add the two like fractions:
441/378 + 729/378 = 441 + 729/378 = 1170/378 - 1170/378 simplified gives 65/21
- So, 63/54 + 81/42 = 65/21
In mixed form: 32/21
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