Add 75/21 and 63/27
1st number: 3 12/21, 2nd number: 2 9/27
75/21 + 63/27 is 124/21.
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,
75/21 = 75 × 9/21 × 9 = 675/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
63/27 = 63 × 7/27 × 7 = 441/189 - Add the two like fractions:
675/189 + 441/189 = 675 + 441/189 = 1116/189 - 1116/189 simplified gives 124/21
- So, 75/21 + 63/27 = 124/21
In mixed form: 519/21
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