Add 21/18 and 28/14
1st number: 1 3/18, 2nd number: 2 0/14
21/18 + 28/14 is 19/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 14 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
21/18 = 21 × 7/18 × 7 = 147/126 - Likewise, for the 2nd fraction, since 14 × 9 = 126,
28/14 = 28 × 9/14 × 9 = 252/126 - Add the two like fractions:
147/126 + 252/126 = 147 + 252/126 = 399/126 - 399/126 simplified gives 19/6
- So, 21/18 + 28/14 = 19/6
In mixed form: 31/6
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