Add 49/28 and 30/40
1st number: 1 21/28, 2nd number: 30/40
49/28 + 30/40 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 28 × 10 = 280,
49/28 = 49 × 10/28 × 10 = 490/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
30/40 = 30 × 7/40 × 7 = 210/280 - Add the two like fractions:
490/280 + 210/280 = 490 + 210/280 = 700/280 - 700/280 simplified gives 5/2
- So, 49/28 + 30/40 = 5/2
In mixed form: 21/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/28+30/40 49/28+60/40 49/56+30/40 49/28+30/80 49/28+90/40 49/84+30/40