Add 81/8 and 20/18
1st number: 10 1/8, 2nd number: 1 2/18
81/8 + 20/18 is 809/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
81/8 = 81 × 9/8 × 9 = 729/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
20/18 = 20 × 4/18 × 4 = 80/72 - Add the two like fractions:
729/72 + 80/72 = 729 + 80/72 = 809/72 - So, 81/8 + 20/18 = 809/72
In mixed form: 1117/72
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