Add 75/30 and 81/7
1st number: 2 15/30, 2nd number: 11 4/7
75/30 + 81/7 is 197/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 7 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
75/30 = 75 × 7/30 × 7 = 525/210 - Likewise, for the 2nd fraction, since 7 × 30 = 210,
81/7 = 81 × 30/7 × 30 = 2430/210 - Add the two like fractions:
525/210 + 2430/210 = 525 + 2430/210 = 2955/210 - 2955/210 simplified gives 197/14
- So, 75/30 + 81/7 = 197/14
In mixed form: 141/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/60+81/7 75/30+81/14 75/90+81/7 75/30+81/21 75/30+81/35 75/30+81/49