Add 3/10 and 8/20
3/10 + 8/20 is 7/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
3/10 = 3 × 2/10 × 2 = 6/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
8/20 = 8 × 1/20 × 1 = 8/20 - Add the two like fractions:
6/20 + 8/20 = 6 + 8/20 = 14/20 - 14/20 simplified gives 7/10
- So, 3/10 + 8/20 = 7/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/10+8/20 3/10+16/20 3/20+8/20 3/10+8/40 9/10+8/20 3/10+24/20 3/30+8/20 3/10+8/60 15/10+8/20 3/10+40/20 3/50+8/20 21/10+8/20 3/10+56/20 3/70+8/20