Add 5/21 and 90/27
1st number: 5/21, 2nd number: 3 9/27
5/21 + 90/27 is 25/7.
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,
5/21 = 5 × 9/21 × 9 = 45/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
90/27 = 90 × 7/27 × 7 = 630/189 - Add the two like fractions:
45/189 + 630/189 = 45 + 630/189 = 675/189 - 675/189 simplified gives 25/7
- So, 5/21 + 90/27 = 25/7
In mixed form: 34/7
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