Add 42/49 and 3/80
42/49 + 3/80 is 501/560.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 80 is 3920
Next, find the equivalent fraction of both fractional numbers with denominator 3920 - For the 1st fraction, since 49 × 80 = 3920,
42/49 = 42 × 80/49 × 80 = 3360/3920 - Likewise, for the 2nd fraction, since 80 × 49 = 3920,
3/80 = 3 × 49/80 × 49 = 147/3920 - Add the two like fractions:
3360/3920 + 147/3920 = 3360 + 147/3920 = 3507/3920 - 3507/3920 simplified gives 501/560
- So, 42/49 + 3/80 = 501/560
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/49+3/80 42/49+6/80 42/98+3/80 42/49+9/80 42/49+15/80 42/49+21/80