Add 80/9 and 21/72
1st number: 8 8/9, 2nd number: 21/72
80/9 + 21/72 is 661/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 9 × 8 = 72,
80/9 = 80 × 8/9 × 8 = 640/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
21/72 = 21 × 1/72 × 1 = 21/72 - Add the two like fractions:
640/72 + 21/72 = 640 + 21/72 = 661/72 - So, 80/9 + 21/72 = 661/72
In mixed form: 913/72
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