Add 8/21 and 63/27
1st number: 8/21, 2nd number: 2 9/27
8/21 + 63/27 is 19/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 21 × 9 = 189,
8/21 = 8 × 9/21 × 9 = 72/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
63/27 = 63 × 7/27 × 7 = 441/189 - Add the two like fractions:
72/189 + 441/189 = 72 + 441/189 = 513/189 - 513/189 simplified gives 19/7
- So, 8/21 + 63/27 = 19/7
In mixed form: 25/7
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