Add 28/56 and 12/30
28/56 + 12/30 is 9/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 30 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
28/56 = 28 × 15/56 × 15 = 420/840 - Likewise, for the 2nd fraction, since 30 × 28 = 840,
12/30 = 12 × 28/30 × 28 = 336/840 - Add the two like fractions:
420/840 + 336/840 = 420 + 336/840 = 756/840 - 756/840 simplified gives 9/10
- So, 28/56 + 12/30 = 9/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/56+24/30 28/56+12/60 84/56+12/30 28/56+36/30 28/56+12/90 28/56+60/30 28/56+84/30