Add 12/30 and 10/18
12/30 + 10/18 is 43/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
12/30 = 12 × 3/30 × 3 = 36/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
10/18 = 10 × 5/18 × 5 = 50/90 - Add the two like fractions:
36/90 + 50/90 = 36 + 50/90 = 86/90 - 86/90 simplified gives 43/45
- So, 12/30 + 10/18 = 43/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/30+10/18 12/30+20/18 12/60+10/18 12/30+10/36 36/30+10/18 12/30+30/18 12/90+10/18 12/30+10/54 60/30+10/18 12/30+50/18 12/30+10/90 84/30+10/18 12/30+70/18