Add 45/4 and 40/25
1st number: 11 1/4, 2nd number: 1 15/25
45/4 + 40/25 is 257/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 4 × 25 = 100,
45/4 = 45 × 25/4 × 25 = 1125/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
40/25 = 40 × 4/25 × 4 = 160/100 - Add the two like fractions:
1125/100 + 160/100 = 1125 + 160/100 = 1285/100 - 1285/100 simplified gives 257/20
- So, 45/4 + 40/25 = 257/20
In mixed form: 1217/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4+40/25 45/4+80/25 45/8+40/25 45/4+40/50 45/12+40/25 45/4+40/75 45/20+40/25 45/28+40/25