Add 25/8 and 40/45
1st number: 3 1/8, 2nd number: 40/45
25/8 + 40/45 is 289/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
25/8 = 25 × 45/8 × 45 = 1125/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
40/45 = 40 × 8/45 × 8 = 320/360 - Add the two like fractions:
1125/360 + 320/360 = 1125 + 320/360 = 1445/360 - 1445/360 simplified gives 289/72
- So, 25/8 + 40/45 = 289/72
In mixed form: 41/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/8+40/45 25/8+80/45 25/16+40/45 25/8+40/90 75/8+40/45 25/24+40/45 25/40+40/45 25/56+40/45