Add 45/80 and 10/30
45/80 + 10/30 is 43/48.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
45/80 = 45 × 3/80 × 3 = 135/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
10/30 = 10 × 8/30 × 8 = 80/240 - Add the two like fractions:
135/240 + 80/240 = 135 + 80/240 = 215/240 - 215/240 simplified gives 43/48
- So, 45/80 + 10/30 = 43/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/80+10/30 45/80+20/30 45/80+10/60 45/80+10/90 45/80+50/30 45/80+70/30