Add 90/28 and 5/40
1st number: 3 6/28, 2nd number: 5/40
90/28 + 5/40 is 187/56.
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,
90/28 = 90 × 10/28 × 10 = 900/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
5/40 = 5 × 7/40 × 7 = 35/280 - Add the two like fractions:
900/280 + 35/280 = 900 + 35/280 = 935/280 - 935/280 simplified gives 187/56
- So, 90/28 + 5/40 = 187/56
In mixed form: 319/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/28+10/40 90/56+5/40 90/28+5/80 90/28+15/40 90/84+5/40 90/28+25/40 90/28+35/40