Add 12/7 and 30/8
1st number: 1 5/7, 2nd number: 3 6/8
12/7 + 30/8 is 153/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,
12/7 = 12 × 8/7 × 8 = 96/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
30/8 = 30 × 7/8 × 7 = 210/56 - Add the two like fractions:
96/56 + 210/56 = 96 + 210/56 = 306/56 - 306/56 simplified gives 153/28
- So, 12/7 + 30/8 = 153/28
In mixed form: 513/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/7+30/8 12/7+60/8 12/14+30/8 12/7+30/16 36/7+30/8 12/7+90/8 12/21+30/8 12/7+30/24 60/7+30/8 12/35+30/8 12/7+30/40 84/7+30/8 12/49+30/8 12/7+30/56