Add 30/70 and 40/5
1st number: 30/70, 2nd number: 8 0/5
30/70 + 40/5 is 59/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 5 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
30/70 = 30 × 1/70 × 1 = 30/70 - Likewise, for the 2nd fraction, since 5 × 14 = 70,
40/5 = 40 × 14/5 × 14 = 560/70 - Add the two like fractions:
30/70 + 560/70 = 30 + 560/70 = 590/70 - 590/70 simplified gives 59/7
- So, 30/70 + 40/5 = 59/7
In mixed form: 83/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/70+40/5 30/70+80/5 30/70+40/10 90/70+40/5 30/70+40/15 30/70+40/25 30/70+40/35