Add 25/90 and 35/40
25/90 + 35/40 is 83/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
25/90 = 25 × 4/90 × 4 = 100/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
35/40 = 35 × 9/40 × 9 = 315/360 - Add the two like fractions:
100/360 + 315/360 = 100 + 315/360 = 415/360 - 415/360 simplified gives 83/72
- So, 25/90 + 35/40 = 83/72
In mixed form: 111/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/90+35/40 25/90+70/40 25/90+35/80 75/90+35/40