Add 14/18 and 28/21
1st number: 14/18, 2nd number: 1 7/21
14/18 + 28/21 is 19/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
14/18 = 14 × 7/18 × 7 = 98/126 - Likewise, for the 2nd fraction, since 21 × 6 = 126,
28/21 = 28 × 6/21 × 6 = 168/126 - Add the two like fractions:
98/126 + 168/126 = 98 + 168/126 = 266/126 - 266/126 simplified gives 19/9
- So, 14/18 + 28/21 = 19/9
In mixed form: 21/9
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