Add 15/35 and 60/18
1st number: 15/35, 2nd number: 3 6/18
15/35 + 60/18 is 79/21.
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,
60/18 = 60 × 35/18 × 35 = 2100/630 - Add the two like fractions:
270/630 + 2100/630 = 270 + 2100/630 = 2370/630 - 2370/630 simplified gives 79/21
- So, 15/35 + 60/18 = 79/21
In mixed form: 316/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/35+60/18 15/70+60/18 15/35+60/36 45/35+60/18 15/35+60/54 75/35+60/18 15/35+60/90