Add 12/56 and 35/30
1st number: 12/56, 2nd number: 1 5/30
12/56 + 35/30 is 29/21.
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,
12/56 = 12 × 15/56 × 15 = 180/840 - Likewise, for the 2nd fraction, since 30 × 28 = 840,
35/30 = 35 × 28/30 × 28 = 980/840 - Add the two like fractions:
180/840 + 980/840 = 180 + 980/840 = 1160/840 - 1160/840 simplified gives 29/21
- So, 12/56 + 35/30 = 29/21
In mixed form: 18/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/56+35/30 12/56+70/30 12/56+35/60 36/56+35/30 12/56+35/90 60/56+35/30 84/56+35/30