Add 90/27 and 6/21
1st number: 3 9/27, 2nd number: 6/21
90/27 + 6/21 is 76/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 21 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
90/27 = 90 × 7/27 × 7 = 630/189 - Likewise, for the 2nd fraction, since 21 × 9 = 189,
6/21 = 6 × 9/21 × 9 = 54/189 - Add the two like fractions:
630/189 + 54/189 = 630 + 54/189 = 684/189 - 684/189 simplified gives 76/21
- So, 90/27 + 6/21 = 76/21
In mixed form: 313/21
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