Add 72/9 and 21/8
1st number: 8 0/9, 2nd number: 2 5/8
72/9 + 21/8 is 85/8.
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,
72/9 = 72 × 8/9 × 8 = 576/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
21/8 = 21 × 9/8 × 9 = 189/72 - Add the two like fractions:
576/72 + 189/72 = 576 + 189/72 = 765/72 - 765/72 simplified gives 85/8
- So, 72/9 + 21/8 = 85/8
In mixed form: 105/8
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