Add 40/30 and 12/56
1st number: 1 10/30, 2nd number: 12/56
40/30 + 12/56 is 65/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 30 × 28 = 840,
40/30 = 40 × 28/30 × 28 = 1120/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
12/56 = 12 × 15/56 × 15 = 180/840 - Add the two like fractions:
1120/840 + 180/840 = 1120 + 180/840 = 1300/840 - 1300/840 simplified gives 65/42
- So, 40/30 + 12/56 = 65/42
In mixed form: 123/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/30+12/56 40/30+24/56 40/60+12/56 40/30+36/56 40/90+12/56 40/30+60/56 40/30+84/56