Add 20/40 and 70/25
1st number: 20/40, 2nd number: 2 20/25
20/40 + 70/25 is 33/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 25 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 40 × 5 = 200,
20/40 = 20 × 5/40 × 5 = 100/200 - Likewise, for the 2nd fraction, since 25 × 8 = 200,
70/25 = 70 × 8/25 × 8 = 560/200 - Add the two like fractions:
100/200 + 560/200 = 100 + 560/200 = 660/200 - 660/200 simplified gives 33/10
- So, 20/40 + 70/25 = 33/10
In mixed form: 33/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/80+70/25 20/40+70/50 60/40+70/25 20/40+70/75