Add 20/10 and 12/8
1st number: 2 0/10, 2nd number: 1 4/8
20/10 + 12/8 is 7/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
20/10 = 20 × 4/10 × 4 = 80/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
12/8 = 12 × 5/8 × 5 = 60/40 - Add the two like fractions:
80/40 + 60/40 = 80 + 60/40 = 140/40 - 140/40 simplified gives 7/2
- So, 20/10 + 12/8 = 7/2
In mixed form: 31/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/10+12/8 20/10+24/8 20/10+12/16 60/10+12/8 20/10+36/8 20/30+12/8 20/10+12/24 20/10+60/8 20/50+12/8 20/10+12/40 20/10+84/8 20/70+12/8 20/10+12/56