Add 81/9 and 30/8
1st number: 9 0/9, 2nd number: 3 6/8
81/9 + 30/8 is 51/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
81/9 = 81 × 8/9 × 8 = 648/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
30/8 = 30 × 9/8 × 9 = 270/72 - Add the two like fractions:
648/72 + 270/72 = 648 + 270/72 = 918/72 - 918/72 simplified gives 51/4
- So, 81/9 + 30/8 = 51/4
In mixed form: 123/4
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