Add 45/30 and 50/80
1st number: 1 15/30, 2nd number: 50/80
45/30 + 50/80 is 17/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 30 × 8 = 240,
45/30 = 45 × 8/30 × 8 = 360/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
50/80 = 50 × 3/80 × 3 = 150/240 - Add the two like fractions:
360/240 + 150/240 = 360 + 150/240 = 510/240 - 510/240 simplified gives 17/8
- So, 45/30 + 50/80 = 17/8
In mixed form: 21/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30+50/80 45/60+50/80 45/90+50/80