Add 90/16 and 40/25
1st number: 5 10/16, 2nd number: 1 15/25
90/16 + 40/25 is 289/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 25 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 16 × 25 = 400,
90/16 = 90 × 25/16 × 25 = 2250/400 - Likewise, for the 2nd fraction, since 25 × 16 = 400,
40/25 = 40 × 16/25 × 16 = 640/400 - Add the two like fractions:
2250/400 + 640/400 = 2250 + 640/400 = 2890/400 - 2890/400 simplified gives 289/40
- So, 90/16 + 40/25 = 289/40
In mixed form: 79/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/16+80/25 90/32+40/25 90/16+40/50 90/48+40/25 90/16+40/75 90/80+40/25