Add 84/24 and 90/21
1st number: 3 12/24, 2nd number: 4 6/21
84/24 + 90/21 is 109/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
84/24 = 84 × 7/24 × 7 = 588/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
90/21 = 90 × 8/21 × 8 = 720/168 - Add the two like fractions:
588/168 + 720/168 = 588 + 720/168 = 1308/168 - 1308/168 simplified gives 109/14
- So, 84/24 + 90/21 = 109/14
In mixed form: 711/14
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