Add 81/84 and 72/49
1st number: 81/84, 2nd number: 1 23/49
81/84 + 72/49 is 477/196.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 49 is 588
Next, find the equivalent fraction of both fractional numbers with denominator 588 - For the 1st fraction, since 84 × 7 = 588,
81/84 = 81 × 7/84 × 7 = 567/588 - Likewise, for the 2nd fraction, since 49 × 12 = 588,
72/49 = 72 × 12/49 × 12 = 864/588 - Add the two like fractions:
567/588 + 864/588 = 567 + 864/588 = 1431/588 - 1431/588 simplified gives 477/196
- So, 81/84 + 72/49 = 477/196
In mixed form: 285/196
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