Add 80/10 and 72/8
1st number: 8 0/10, 2nd number: 9 0/8
80/10 + 72/8 is 17/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
80/10 = 80 × 4/10 × 4 = 320/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
72/8 = 72 × 5/8 × 5 = 360/40 - Add the two like fractions:
320/40 + 360/40 = 320 + 360/40 = 680/40 - 680/40 simplified gives 17/1
- So, 80/10 + 72/8 = 17/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/20+72/8 80/10+72/16 80/30+72/8 80/10+72/24 80/50+72/8 80/10+72/40 80/70+72/8 80/10+72/56