Add 84/9 and 21/72
1st number: 9 3/9, 2nd number: 21/72
84/9 + 21/72 is 77/8.
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,
84/9 = 84 × 8/9 × 8 = 672/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
21/72 = 21 × 1/72 × 1 = 21/72 - Add the two like fractions:
672/72 + 21/72 = 672 + 21/72 = 693/72 - 693/72 simplified gives 77/8
- So, 84/9 + 21/72 = 77/8
In mixed form: 95/8
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