Add 3/28 and 8/7
1st number: 3/28, 2nd number: 1 1/7
3/28 + 8/7 is 5/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
3/28 = 3 × 1/28 × 1 = 3/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
8/7 = 8 × 4/7 × 4 = 32/28 - Add the two like fractions:
3/28 + 32/28 = 3 + 32/28 = 35/28 - 35/28 simplified gives 5/4
- So, 3/28 + 8/7 = 5/4
In mixed form: 11/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/28+8/7 3/28+16/7 3/56+8/7 3/28+8/14 9/28+8/7 3/28+24/7 3/84+8/7 3/28+8/21 15/28+8/7 3/28+40/7 3/28+8/35 21/28+8/7 3/28+56/7 3/28+8/49