Add 7/20 and 4/49
7/20 + 4/49 is 423/980.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 49 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 20 × 49 = 980,
7/20 = 7 × 49/20 × 49 = 343/980 - Likewise, for the 2nd fraction, since 49 × 20 = 980,
4/49 = 4 × 20/49 × 20 = 80/980 - Add the two like fractions:
343/980 + 80/980 = 343 + 80/980 = 423/980 - So, 7/20 + 4/49 = 423/980
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/20+4/49 7/20+8/49 7/40+4/49 7/20+4/98 21/20+4/49 7/20+12/49 7/60+4/49 35/20+4/49 7/20+20/49 49/20+4/49 7/20+28/49