Add 15/4 and 90/25
1st number: 3 3/4, 2nd number: 3 15/25
15/4 + 90/25 is 147/20.
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,
15/4 = 15 × 25/4 × 25 = 375/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
90/25 = 90 × 4/25 × 4 = 360/100 - Add the two like fractions:
375/100 + 360/100 = 375 + 360/100 = 735/100 - 735/100 simplified gives 147/20
- So, 15/4 + 90/25 = 147/20
In mixed form: 77/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/4+90/25 15/8+90/25 15/4+90/50 45/4+90/25 15/12+90/25 15/4+90/75 75/4+90/25 15/20+90/25 15/28+90/25