Add 20/4 and 72/30
1st number: 5 0/4, 2nd number: 2 12/30
20/4 + 72/30 is 37/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
20/4 = 20 × 15/4 × 15 = 300/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
72/30 = 72 × 2/30 × 2 = 144/60 - Add the two like fractions:
300/60 + 144/60 = 300 + 144/60 = 444/60 - 444/60 simplified gives 37/5
- So, 20/4 + 72/30 = 37/5
In mixed form: 72/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/4+72/30 20/8+72/30 20/4+72/60 60/4+72/30 20/12+72/30 20/4+72/90 20/28+72/30