Add 70/30 and 21/9
1st number: 2 10/30, 2nd number: 2 3/9
70/30 + 21/9 is 14/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
70/30 = 70 × 3/30 × 3 = 210/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
21/9 = 21 × 10/9 × 10 = 210/90 - Add the two like fractions:
210/90 + 210/90 = 210 + 210/90 = 420/90 - 420/90 simplified gives 14/3
- So, 70/30 + 21/9 = 14/3
In mixed form: 42/3
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