Add 7/2 and 12/20
1st number: 3 1/2, 2nd number: 12/20
7/2 + 12/20 is 41/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 2 × 10 = 20,
7/2 = 7 × 10/2 × 10 = 70/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
12/20 = 12 × 1/20 × 1 = 12/20 - Add the two like fractions:
70/20 + 12/20 = 70 + 12/20 = 82/20 - 82/20 simplified gives 41/10
- So, 7/2 + 12/20 = 41/10
In mixed form: 41/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/2+12/20 7/2+24/20 7/4+12/20 7/2+12/40 21/2+12/20 7/2+36/20 7/6+12/20 7/2+12/60 35/2+12/20 7/2+60/20 7/10+12/20 49/2+12/20 7/2+84/20 7/14+12/20