Add 80/8 and 42/45
1st number: 10 0/8, 2nd number: 42/45
80/8 + 42/45 is 164/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
80/8 = 80 × 45/8 × 45 = 3600/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
42/45 = 42 × 8/45 × 8 = 336/360 - Add the two like fractions:
3600/360 + 336/360 = 3600 + 336/360 = 3936/360 - 3936/360 simplified gives 164/15
- So, 80/8 + 42/45 = 164/15
In mixed form: 1014/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8+84/45 80/16+42/45 80/8+42/90 80/24+42/45 80/40+42/45 80/56+42/45