Add 28/5 and 72/81
1st number: 5 3/5, 2nd number: 72/81
28/5 + 72/81 is 292/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 5 × 81 = 405,
28/5 = 28 × 81/5 × 81 = 2268/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
72/81 = 72 × 5/81 × 5 = 360/405 - Add the two like fractions:
2268/405 + 360/405 = 2268 + 360/405 = 2628/405 - 2628/405 simplified gives 292/45
- So, 28/5 + 72/81 = 292/45
In mixed form: 622/45
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