Add 40/10 and 15/4
1st number: 4 0/10, 2nd number: 3 3/4
40/10 + 15/4 is 31/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 4 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 4 × 5 = 20,
15/4 = 15 × 5/4 × 5 = 75/20 - Add the two like fractions:
80/20 + 75/20 = 80 + 75/20 = 155/20 - 155/20 simplified gives 31/4
- So, 40/10 + 15/4 = 31/4
In mixed form: 73/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/10+15/4 40/10+30/4 40/20+15/4 40/10+15/8 40/10+45/4 40/30+15/4 40/10+15/12 40/10+75/4 40/50+15/4 40/10+15/20 40/70+15/4 40/10+15/28