Add 7/10 and 20/40
7/10 + 20/40 is 6/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
7/10 = 7 × 4/10 × 4 = 28/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
20/40 = 20 × 1/40 × 1 = 20/40 - Add the two like fractions:
28/40 + 20/40 = 28 + 20/40 = 48/40 - 48/40 simplified gives 6/5
- So, 7/10 + 20/40 = 6/5
In mixed form: 11/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/10+20/40 7/20+20/40 7/10+20/80 21/10+20/40 7/10+60/40 7/30+20/40 35/10+20/40 7/50+20/40 49/10+20/40 7/70+20/40