Add 18/15 and 21/35
1st number: 1 3/15, 2nd number: 21/35
18/15 + 21/35 is 9/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
18/15 = 18 × 7/15 × 7 = 126/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
21/35 = 21 × 3/35 × 3 = 63/105 - Add the two like fractions:
126/105 + 63/105 = 126 + 63/105 = 189/105 - 189/105 simplified gives 9/5
- So, 18/15 + 21/35 = 9/5
In mixed form: 14/5
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