Add 18/3 and 21/7
1st number: 6 0/3, 2nd number: 3 0/7
18/3 + 21/7 is 9/1.
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,
18/3 = 18 × 7/3 × 7 = 126/21 - Likewise, for the 2nd fraction, since 7 × 3 = 21,
21/7 = 21 × 3/7 × 3 = 63/21 - Add the two like fractions:
126/21 + 63/21 = 126 + 63/21 = 189/21 - 189/21 simplified gives 9/1
- So, 18/3 + 21/7 = 9/1
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