Add 6/4 and 72/20
1st number: 1 2/4, 2nd number: 3 12/20
6/4 + 72/20 is 51/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
6/4 = 6 × 5/4 × 5 = 30/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
72/20 = 72 × 1/20 × 1 = 72/20 - Add the two like fractions:
30/20 + 72/20 = 30 + 72/20 = 102/20 - 102/20 simplified gives 51/10
- So, 6/4 + 72/20 = 51/10
In mixed form: 51/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/4+72/20 6/8+72/20 6/4+72/40 18/4+72/20 6/12+72/20 6/4+72/60 30/4+72/20 6/20+72/20 42/4+72/20 6/28+72/20