Add 21/90 and 30/27
1st number: 21/90, 2nd number: 1 3/27
21/90 + 30/27 is 121/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
21/90 = 21 × 3/90 × 3 = 63/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
30/27 = 30 × 10/27 × 10 = 300/270 - Add the two like fractions:
63/270 + 300/270 = 63 + 300/270 = 363/270 - 363/270 simplified gives 121/90
- So, 21/90 + 30/27 = 121/90
In mixed form: 131/90
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