Add 21/36 and 63/7
1st number: 21/36, 2nd number: 9 0/7
21/36 + 63/7 is 115/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 7 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
21/36 = 21 × 7/36 × 7 = 147/252 - Likewise, for the 2nd fraction, since 7 × 36 = 252,
63/7 = 63 × 36/7 × 36 = 2268/252 - Add the two like fractions:
147/252 + 2268/252 = 147 + 2268/252 = 2415/252 - 2415/252 simplified gives 115/12
- So, 21/36 + 63/7 = 115/12
In mixed form: 97/12
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