Add 72/40 and 20/4
1st number: 1 32/40, 2nd number: 5 0/4
72/40 + 20/4 is 34/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 4 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
72/40 = 72 × 1/40 × 1 = 72/40 - Likewise, for the 2nd fraction, since 4 × 10 = 40,
20/4 = 20 × 10/4 × 10 = 200/40 - Add the two like fractions:
72/40 + 200/40 = 72 + 200/40 = 272/40 - 272/40 simplified gives 34/5
- So, 72/40 + 20/4 = 34/5
In mixed form: 64/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/40+40/4 72/80+20/4 72/40+20/8 72/40+60/4 72/40+20/12 72/40+20/28