Add 75/30 and 20/56
1st number: 2 15/30, 2nd number: 20/56
75/30 + 20/56 is 20/7.
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,
75/30 = 75 × 28/30 × 28 = 2100/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
20/56 = 20 × 15/56 × 15 = 300/840 - Add the two like fractions:
2100/840 + 300/840 = 2100 + 300/840 = 2400/840 - 2400/840 simplified gives 20/7
- So, 75/30 + 20/56 = 20/7
In mixed form: 26/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/30+40/56 75/60+20/56 75/30+60/56 75/90+20/56