Add 49/28 and 8/90
1st number: 1 21/28, 2nd number: 8/90
49/28 + 8/90 is 331/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
49/28 = 49 × 45/28 × 45 = 2205/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
8/90 = 8 × 14/90 × 14 = 112/1260 - Add the two like fractions:
2205/1260 + 112/1260 = 2205 + 112/1260 = 2317/1260 - 2317/1260 simplified gives 331/180
- So, 49/28 + 8/90 = 331/180
In mixed form: 1151/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/28+8/90 49/28+16/90 49/56+8/90 49/28+24/90 49/84+8/90 49/28+40/90 49/28+56/90