Add 30/7 and 81/56
1st number: 4 2/7, 2nd number: 1 25/56
30/7 + 81/56 is 321/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,
30/7 = 30 × 8/7 × 8 = 240/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
81/56 = 81 × 1/56 × 1 = 81/56 - Add the two like fractions:
240/56 + 81/56 = 240 + 81/56 = 321/56 - So, 30/7 + 81/56 = 321/56
In mixed form: 541/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/7+81/56 30/14+81/56 90/7+81/56 30/21+81/56 30/35+81/56 30/49+81/56