Add 3/28 and 54/70
3/28 + 54/70 is 123/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
3/28 = 3 × 5/28 × 5 = 15/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
54/70 = 54 × 2/70 × 2 = 108/140 - Add the two like fractions:
15/140 + 108/140 = 15 + 108/140 = 123/140 - So, 3/28 + 54/70 = 123/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/28+54/70 3/56+54/70 9/28+54/70 3/84+54/70 15/28+54/70 21/28+54/70