Add 81/4 and 72/9
1st number: 20 1/4, 2nd number: 8 0/9
81/4 + 72/9 is 113/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
81/4 = 81 × 9/4 × 9 = 729/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
72/9 = 72 × 4/9 × 4 = 288/36 - Add the two like fractions:
729/36 + 288/36 = 729 + 288/36 = 1017/36 - 1017/36 simplified gives 113/4
- So, 81/4 + 72/9 = 113/4
In mixed form: 281/4
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