Add 72/27 and 5/7
1st number: 2 18/27, 2nd number: 5/7
72/27 + 5/7 is 71/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 7 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
72/27 = 72 × 7/27 × 7 = 504/189 - Likewise, for the 2nd fraction, since 7 × 27 = 189,
5/7 = 5 × 27/7 × 27 = 135/189 - Add the two like fractions:
504/189 + 135/189 = 504 + 135/189 = 639/189 - 639/189 simplified gives 71/21
- So, 72/27 + 5/7 = 71/21
In mixed form: 38/21
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