Add 81/90 and 5/16
81/90 + 5/16 is 97/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 16 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
81/90 = 81 × 8/90 × 8 = 648/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
5/16 = 5 × 45/16 × 45 = 225/720 - Add the two like fractions:
648/720 + 225/720 = 648 + 225/720 = 873/720 - 873/720 simplified gives 97/80
- So, 81/90 + 5/16 = 97/80
In mixed form: 117/80
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