Add 90/49 and 45/20
1st number: 1 41/49, 2nd number: 2 5/20
90/49 + 45/20 is 801/196.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 20 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 49 × 20 = 980,
90/49 = 90 × 20/49 × 20 = 1800/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
45/20 = 45 × 49/20 × 49 = 2205/980 - Add the two like fractions:
1800/980 + 2205/980 = 1800 + 2205/980 = 4005/980 - 4005/980 simplified gives 801/196
- So, 90/49 + 45/20 = 801/196
In mixed form: 417/196
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/49+90/20 90/98+45/20 90/49+45/40 90/49+45/60