Add 20/4 and 15/70
1st number: 5 0/4, 2nd number: 15/70
20/4 + 15/70 is 73/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 4 × 35 = 140,
20/4 = 20 × 35/4 × 35 = 700/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
15/70 = 15 × 2/70 × 2 = 30/140 - Add the two like fractions:
700/140 + 30/140 = 700 + 30/140 = 730/140 - 730/140 simplified gives 73/14
- So, 20/4 + 15/70 = 73/14
In mixed form: 53/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/4+15/70 20/4+30/70 20/8+15/70 60/4+15/70 20/4+45/70 20/12+15/70 20/4+75/70 20/28+15/70