Add 28/30 and 32/80
28/30 + 32/80 is 4/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 30 × 8 = 240,
28/30 = 28 × 8/30 × 8 = 224/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
32/80 = 32 × 3/80 × 3 = 96/240 - Add the two like fractions:
224/240 + 96/240 = 224 + 96/240 = 320/240 - 320/240 simplified gives 4/3
- So, 28/30 + 32/80 = 4/3
In mixed form: 11/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/30+32/80 28/30+64/80 28/60+32/80 84/30+32/80 28/30+96/80 28/90+32/80