Add 18/30 and 8/20
18/30 + 8/20 is 1/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
18/30 = 18 × 2/30 × 2 = 36/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
8/20 = 8 × 3/20 × 3 = 24/60 - Add the two like fractions:
36/60 + 24/60 = 36 + 24/60 = 60/60 - 60/60 simplified gives 1/1
- So, 18/30 + 8/20 = 1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/30+8/20 18/30+16/20 18/60+8/20 18/30+8/40 54/30+8/20 18/30+24/20 18/90+8/20 18/30+8/60 90/30+8/20 18/30+40/20 18/30+56/20