Add 80/30 and 21/90
1st number: 2 20/30, 2nd number: 21/90
80/30 + 21/90 is 29/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
80/30 = 80 × 3/30 × 3 = 240/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
21/90 = 21 × 1/90 × 1 = 21/90 - Add the two like fractions:
240/90 + 21/90 = 240 + 21/90 = 261/90 - 261/90 simplified gives 29/10
- So, 80/30 + 21/90 = 29/10
In mixed form: 29/10
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