Add 21/3 and 72/27
1st number: 7 0/3, 2nd number: 2 18/27
21/3 + 72/27 is 29/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 27 is 27
Next, find the equivalent fraction of both fractional numbers with denominator 27 - For the 1st fraction, since 3 × 9 = 27,
21/3 = 21 × 9/3 × 9 = 189/27 - Likewise, for the 2nd fraction, since 27 × 1 = 27,
72/27 = 72 × 1/27 × 1 = 72/27 - Add the two like fractions:
189/27 + 72/27 = 189 + 72/27 = 261/27 - 261/27 simplified gives 29/3
- So, 21/3 + 72/27 = 29/3
In mixed form: 92/3
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