Add 7/5 and 8/20
1st number: 1 2/5, 2nd number: 8/20
7/5 + 8/20 is 9/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 5 × 4 = 20,
7/5 = 7 × 4/5 × 4 = 28/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
8/20 = 8 × 1/20 × 1 = 8/20 - Add the two like fractions:
28/20 + 8/20 = 28 + 8/20 = 36/20 - 36/20 simplified gives 9/5
- So, 7/5 + 8/20 = 9/5
In mixed form: 14/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/5+8/20 7/5+16/20 7/10+8/20 7/5+8/40 21/5+8/20 7/5+24/20 7/15+8/20 7/5+8/60 35/5+8/20 7/5+40/20 7/25+8/20 49/5+8/20 7/5+56/20 7/35+8/20