Add 7/2 and 7/8
1st number: 3 1/2, 2nd number: 7/8
72 + 78 is 358.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 8 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 2 × 4 = 8,
72 = 7 × 42 × 4 = 288 - Likewise, for the 2nd fraction, since 8 × 1 = 8,
78 = 7 × 18 × 1 = 78 - Add the two like fractions:
288 + 78 = 28 + 78 = 358 - So, 7/2 + 7/8 = 35/8
In mixed form: 438
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/2+7/8 7/2+14/8 7/4+7/8 7/2+7/16 21/2+7/8 7/2+21/8 7/6+7/8 7/2+7/24 35/2+7/8 7/2+35/8 7/10+7/8 7/2+7/40 49/2+7/8 7/2+49/8 7/14+7/8 7/2+7/56