Add 72/8 and 8/20
1st number: 9 0/8, 2nd number: 8/20
72/8 + 8/20 is 47/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
72/8 = 72 × 5/8 × 5 = 360/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
8/20 = 8 × 2/20 × 2 = 16/40 - Add the two like fractions:
360/40 + 16/40 = 360 + 16/40 = 376/40 - 376/40 simplified gives 47/5
- So, 72/8 + 8/20 = 47/5
In mixed form: 92/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/8+16/20 72/16+8/20 72/8+8/40 72/8+24/20 72/24+8/20 72/8+8/60 72/8+40/20 72/40+8/20 72/8+56/20 72/56+8/20