Add 25/30 and 20/56
25/30 + 20/56 is 25/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 30 × 28 = 840,
25/30 = 25 × 28/30 × 28 = 700/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
20/56 = 20 × 15/56 × 15 = 300/840 - Add the two like fractions:
700/840 + 300/840 = 700 + 300/840 = 1000/840 - 1000/840 simplified gives 25/21
- So, 25/30 + 20/56 = 25/21
In mixed form: 14/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/30+20/56 25/30+40/56 25/60+20/56 75/30+20/56 25/30+60/56 25/90+20/56