Add 28/32 and 25/20
1st number: 28/32, 2nd number: 1 5/20
28/32 + 25/20 is 17/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 20 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 32 × 5 = 160,
28/32 = 28 × 5/32 × 5 = 140/160 - Likewise, for the 2nd fraction, since 20 × 8 = 160,
25/20 = 25 × 8/20 × 8 = 200/160 - Add the two like fractions:
140/160 + 200/160 = 140 + 200/160 = 340/160 - 340/160 simplified gives 17/8
- So, 28/32 + 25/20 = 17/8
In mixed form: 21/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/32+25/20 28/32+50/20 28/64+25/20 28/32+25/40 84/32+25/20 28/32+75/20 28/96+25/20 28/32+25/60