Add 9/10 and 8/9
9/10 + 8/9 is 161/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
9/10 = 9 × 9/10 × 9 = 81/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
8/9 = 8 × 10/9 × 10 = 80/90 - Add the two like fractions:
81/90 + 80/90 = 81 + 80/90 = 161/90 - So, 9/10 + 8/9 = 161/90
In mixed form: 171/90
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