Add 81/9 and 70/28
1st number: 9 0/9, 2nd number: 2 14/28
81/9 + 70/28 is 23/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
81/9 = 81 × 28/9 × 28 = 2268/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
70/28 = 70 × 9/28 × 9 = 630/252 - Add the two like fractions:
2268/252 + 630/252 = 2268 + 630/252 = 2898/252 - 2898/252 simplified gives 23/2
- So, 81/9 + 70/28 = 23/2
In mixed form: 111/2
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