Add 40/6 and 72/40
1st number: 6 4/6, 2nd number: 1 32/40
40/6 + 72/40 is 127/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 6 × 20 = 120,
40/6 = 40 × 20/6 × 20 = 800/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
72/40 = 72 × 3/40 × 3 = 216/120 - Add the two like fractions:
800/120 + 216/120 = 800 + 216/120 = 1016/120 - 1016/120 simplified gives 127/15
- So, 40/6 + 72/40 = 127/15
In mixed form: 87/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/6+72/40 40/12+72/40 40/6+72/80 40/18+72/40 40/30+72/40 40/42+72/40