Add 30/35 and 72/56
1st number: 30/35, 2nd number: 1 16/56
30/35 + 72/56 is 15/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 35 × 8 = 280,
30/35 = 30 × 8/35 × 8 = 240/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
72/56 = 72 × 5/56 × 5 = 360/280 - Add the two like fractions:
240/280 + 360/280 = 240 + 360/280 = 600/280 - 600/280 simplified gives 15/7
- So, 30/35 + 72/56 = 15/7
In mixed form: 21/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/35+72/56 30/70+72/56 90/35+72/56