Add 28/9 and 21/72
1st number: 3 1/9, 2nd number: 21/72
28/9 + 21/72 is 245/72.
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,
28/9 = 28 × 8/9 × 8 = 224/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
21/72 = 21 × 1/72 × 1 = 21/72 - Add the two like fractions:
224/72 + 21/72 = 224 + 21/72 = 245/72 - So, 28/9 + 21/72 = 245/72
In mixed form: 329/72
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