Add 14/8 and 84/21
1st number: 1 6/8, 2nd number: 4 0/21
14/8 + 84/21 is 23/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
14/8 = 14 × 21/8 × 21 = 294/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
84/21 = 84 × 8/21 × 8 = 672/168 - Add the two like fractions:
294/168 + 672/168 = 294 + 672/168 = 966/168 - 966/168 simplified gives 23/4
- So, 14/8 + 84/21 = 23/4
In mixed form: 53/4
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