Add 25/35 and 12/18
25/35 + 12/18 is 29/21.
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,
25/35 = 25 × 18/35 × 18 = 450/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
12/18 = 12 × 35/18 × 35 = 420/630 - Add the two like fractions:
450/630 + 420/630 = 450 + 420/630 = 870/630 - 870/630 simplified gives 29/21
- So, 25/35 + 12/18 = 29/21
In mixed form: 18/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/35+12/18 25/35+24/18 25/70+12/18 25/35+12/36 75/35+12/18 25/35+36/18 25/35+12/54 25/35+60/18 25/35+12/90 25/35+84/18