Add 40/56 and 9/30
40/56 + 9/30 is 71/70.
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,
40/56 = 40 × 15/56 × 15 = 600/840 - Likewise, for the 2nd fraction, since 30 × 28 = 840,
9/30 = 9 × 28/30 × 28 = 252/840 - Add the two like fractions:
600/840 + 252/840 = 600 + 252/840 = 852/840 - 852/840 simplified gives 71/70
- So, 40/56 + 9/30 = 71/70
In mixed form: 11/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/56+9/30 40/56+18/30 40/56+9/60 40/56+27/30 40/56+9/90 40/56+45/30 40/56+63/30