Add 28/10 and 81/18
1st number: 2 8/10, 2nd number: 4 9/18
28/10 + 81/18 is 73/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
28/10 = 28 × 9/10 × 9 = 252/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
81/18 = 81 × 5/18 × 5 = 405/90 - Add the two like fractions:
252/90 + 405/90 = 252 + 405/90 = 657/90 - 657/90 simplified gives 73/10
- So, 28/10 + 81/18 = 73/10
In mixed form: 73/10
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