Add 72/40 and 3/14
1st number: 1 32/40, 2nd number: 3/14
72/40 + 3/14 is 141/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 14 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
72/40 = 72 × 7/40 × 7 = 504/280 - Likewise, for the 2nd fraction, since 14 × 20 = 280,
3/14 = 3 × 20/14 × 20 = 60/280 - Add the two like fractions:
504/280 + 60/280 = 504 + 60/280 = 564/280 - 564/280 simplified gives 141/70
- So, 72/40 + 3/14 = 141/70
In mixed form: 21/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/40+6/14 72/80+3/14 72/40+3/28 72/40+9/14 72/40+3/42 72/40+15/14 72/40+3/70 72/40+21/14 72/40+3/98