Add 15/35 and 12/18
15/35 + 12/18 is 23/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 18 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 35 × 18 = 630,
15/35 = 15 × 18/35 × 18 = 270/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
12/18 = 12 × 35/18 × 35 = 420/630 - Add the two like fractions:
270/630 + 420/630 = 270 + 420/630 = 690/630 - 690/630 simplified gives 23/21
- So, 15/35 + 12/18 = 23/21
In mixed form: 12/21
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