Add 12/21 and 36/18
1st number: 12/21, 2nd number: 2 0/18
12/21 + 36/18 is 18/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 21 × 6 = 126,
12/21 = 12 × 6/21 × 6 = 72/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
36/18 = 36 × 7/18 × 7 = 252/126 - Add the two like fractions:
72/126 + 252/126 = 72 + 252/126 = 324/126 - 324/126 simplified gives 18/7
- So, 12/21 + 36/18 = 18/7
In mixed form: 24/7
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