Add 18/21 and 9/35
18/21 + 9/35 is 39/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
18/21 = 18 × 5/21 × 5 = 90/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
9/35 = 9 × 3/35 × 3 = 27/105 - Add the two like fractions:
90/105 + 27/105 = 90 + 27/105 = 117/105 - 117/105 simplified gives 39/35
- So, 18/21 + 9/35 = 39/35
In mixed form: 14/35
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