Add 45/80 and 8/40
45/80 + 8/40 is 61/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
45/80 = 45 × 1/80 × 1 = 45/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
8/40 = 8 × 2/40 × 2 = 16/80 - Add the two like fractions:
45/80 + 16/80 = 45 + 16/80 = 61/80 - So, 45/80 + 8/40 = 61/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/80+8/40 45/80+16/40 45/80+8/80 45/80+24/40 45/80+56/40