Add 28/10 and 2/40
1st number: 2 8/10, 2nd number: 2/40
28/10 + 2/40 is 57/20.
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,
28/10 = 28 × 4/10 × 4 = 112/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
2/40 = 2 × 1/40 × 1 = 2/40 - Add the two like fractions:
112/40 + 2/40 = 112 + 2/40 = 114/40 - 114/40 simplified gives 57/20
- So, 28/10 + 2/40 = 57/20
In mixed form: 217/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/10+2/40 28/10+4/40 28/20+2/40 28/10+2/80 84/10+2/40 28/10+6/40 28/30+2/40 28/10+10/40 28/50+2/40 28/10+14/40 28/70+2/40