Add 40/70 and 80/10
1st number: 40/70, 2nd number: 8 0/10
40/70 + 80/10 is 60/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
40/70 = 40 × 1/70 × 1 = 40/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
80/10 = 80 × 7/10 × 7 = 560/70 - Add the two like fractions:
40/70 + 560/70 = 40 + 560/70 = 600/70 - 600/70 simplified gives 60/7
- So, 40/70 + 80/10 = 60/7
In mixed form: 84/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/70+80/10 40/70+80/20 40/70+80/30 40/70+80/50 40/70+80/70