Add 28/18 and 70/21
1st number: 1 10/18, 2nd number: 3 7/21
28/18 + 70/21 is 44/9.
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,
28/18 = 28 × 7/18 × 7 = 196/126 - Likewise, for the 2nd fraction, since 21 × 6 = 126,
70/21 = 70 × 6/21 × 6 = 420/126 - Add the two like fractions:
196/126 + 420/126 = 196 + 420/126 = 616/126 - 616/126 simplified gives 44/9
- So, 28/18 + 70/21 = 44/9
In mixed form: 48/9
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