Add 4/30 and 20/28
4/30 + 20/28 is 89/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
4/30 = 4 × 14/30 × 14 = 56/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
20/28 = 20 × 15/28 × 15 = 300/420 - Add the two like fractions:
56/420 + 300/420 = 56 + 300/420 = 356/420 - 356/420 simplified gives 89/105
- So, 4/30 + 20/28 = 89/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/30+20/28 4/30+40/28 4/60+20/28 4/30+20/56 12/30+20/28 4/30+60/28 4/90+20/28 4/30+20/84 20/30+20/28 28/30+20/28