Add 40/10 and 12/20
1st number: 4 0/10, 2nd number: 12/20
40/10 + 12/20 is 23/5.
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,
40/10 = 40 × 2/10 × 2 = 80/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
12/20 = 12 × 1/20 × 1 = 12/20 - Add the two like fractions:
80/20 + 12/20 = 80 + 12/20 = 92/20 - 92/20 simplified gives 23/5
- So, 40/10 + 12/20 = 23/5
In mixed form: 43/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/10+12/20 40/10+24/20 40/20+12/20 40/10+12/40 40/10+36/20 40/30+12/20 40/10+12/60 40/10+60/20 40/50+12/20 40/10+84/20 40/70+12/20