Add 81/3 and 21/7
1st number: 27 0/3, 2nd number: 3 0/7
81/3 + 21/7 is 30/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 7 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
81/3 = 81 × 7/3 × 7 = 567/21 - Likewise, for the 2nd fraction, since 7 × 3 = 21,
21/7 = 21 × 3/7 × 3 = 63/21 - Add the two like fractions:
567/21 + 63/21 = 567 + 63/21 = 630/21 - 630/21 simplified gives 30/1
- So, 81/3 + 21/7 = 30/1
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