Add 90/27 and 21/9
1st number: 3 9/27, 2nd number: 2 3/9
90/27 + 21/9 is 17/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 9 is 27
Next, find the equivalent fraction of both fractional numbers with denominator 27 - For the 1st fraction, since 27 × 1 = 27,
90/27 = 90 × 1/27 × 1 = 90/27 - Likewise, for the 2nd fraction, since 9 × 3 = 27,
21/9 = 21 × 3/9 × 3 = 63/27 - Add the two like fractions:
90/27 + 63/27 = 90 + 63/27 = 153/27 - 153/27 simplified gives 17/3
- So, 90/27 + 21/9 = 17/3
In mixed form: 52/3
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