Add 40/84 and 21/18
1st number: 40/84, 2nd number: 1 3/18
40/84 + 21/18 is 23/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
40/84 = 40 × 3/84 × 3 = 120/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
21/18 = 21 × 14/18 × 14 = 294/252 - Add the two like fractions:
120/252 + 294/252 = 120 + 294/252 = 414/252 - 414/252 simplified gives 23/14
- So, 40/84 + 21/18 = 23/14
In mixed form: 19/14
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