Add 7/2 and 20/70
1st number: 3 1/2, 2nd number: 20/70
7/2 + 20/70 is 53/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 2 × 35 = 70,
7/2 = 7 × 35/2 × 35 = 245/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
20/70 = 20 × 1/70 × 1 = 20/70 - Add the two like fractions:
245/70 + 20/70 = 245 + 20/70 = 265/70 - 265/70 simplified gives 53/14
- So, 7/2 + 20/70 = 53/14
In mixed form: 311/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/2+20/70 7/2+40/70 7/4+20/70 21/2+20/70 7/2+60/70 7/6+20/70 35/2+20/70 7/10+20/70 49/2+20/70 7/14+20/70