Add 12/30 and 2/42
12/30 + 2/42 is 47/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
12/30 = 12 × 7/30 × 7 = 84/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
2/42 = 2 × 5/42 × 5 = 10/210 - Add the two like fractions:
84/210 + 10/210 = 84 + 10/210 = 94/210 - 94/210 simplified gives 47/105
- So, 12/30 + 2/42 = 47/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/30+2/42 12/30+4/42 12/60+2/42 12/30+2/84 36/30+2/42 12/30+6/42 12/90+2/42 60/30+2/42 12/30+10/42 84/30+2/42 12/30+14/42