Add 21/35 and 18/9
1st number: 21/35, 2nd number: 2 0/9
21/35 + 18/9 is 13/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 9 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 35 × 9 = 315,
21/35 = 21 × 9/35 × 9 = 189/315 - Likewise, for the 2nd fraction, since 9 × 35 = 315,
18/9 = 18 × 35/9 × 35 = 630/315 - Add the two like fractions:
189/315 + 630/315 = 189 + 630/315 = 819/315 - 819/315 simplified gives 13/5
- So, 21/35 + 18/9 = 13/5
In mixed form: 23/5
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