Add 80/30 and 5/40
1st number: 2 20/30, 2nd number: 5/40
80/30 + 5/40 is 67/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
80/30 = 80 × 4/30 × 4 = 320/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
5/40 = 5 × 3/40 × 3 = 15/120 - Add the two like fractions:
320/120 + 15/120 = 320 + 15/120 = 335/120 - 335/120 simplified gives 67/24
- So, 80/30 + 5/40 = 67/24
In mixed form: 219/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/30+10/40 80/60+5/40 80/30+5/80 80/30+15/40 80/90+5/40 80/30+25/40 80/30+35/40