Add 45/40 and 5/30
1st number: 1 5/40, 2nd number: 5/30
45/40 + 5/30 is 31/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
45/40 = 45 × 3/40 × 3 = 135/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
5/30 = 5 × 4/30 × 4 = 20/120 - Add the two like fractions:
135/120 + 20/120 = 135 + 20/120 = 155/120 - 155/120 simplified gives 31/24
- So, 45/40 + 5/30 = 31/24
In mixed form: 17/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/40+5/30 45/40+10/30 45/80+5/30 45/40+5/60 45/40+15/30 45/40+5/90 45/40+25/30 45/40+35/30