Add 25/8 and 90/20
1st number: 3 1/8, 2nd number: 4 10/20
25/8 + 90/20 is 61/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
25/8 = 25 × 5/8 × 5 = 125/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
90/20 = 90 × 2/20 × 2 = 180/40 - Add the two like fractions:
125/40 + 180/40 = 125 + 180/40 = 305/40 - 305/40 simplified gives 61/8
- So, 25/8 + 90/20 = 61/8
In mixed form: 75/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/8+90/20 25/16+90/20 25/8+90/40 75/8+90/20 25/24+90/20 25/8+90/60 25/40+90/20 25/56+90/20