Add 40/10 and 25/20
1st number: 4 0/10, 2nd number: 1 5/20
40/10 + 25/20 is 21/4.
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,
25/20 = 25 × 1/20 × 1 = 25/20 - Add the two like fractions:
80/20 + 25/20 = 80 + 25/20 = 105/20 - 105/20 simplified gives 21/4
- So, 40/10 + 25/20 = 21/4
In mixed form: 51/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/10+25/20 40/10+50/20 40/20+25/20 40/10+25/40 40/10+75/20 40/30+25/20 40/10+25/60 40/50+25/20 40/70+25/20