Add 30/81 and 4/7
30/81 + 4/7 is 178/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 7 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 81 × 7 = 567,
30/81 = 30 × 7/81 × 7 = 210/567 - Likewise, for the 2nd fraction, since 7 × 81 = 567,
4/7 = 4 × 81/7 × 81 = 324/567 - Add the two like fractions:
210/567 + 324/567 = 210 + 324/567 = 534/567 - 534/567 simplified gives 178/189
- So, 30/81 + 4/7 = 178/189
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