Add 2/30 and 20/42
2/30 + 20/42 is 19/35.
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,
2/30 = 2 × 7/30 × 7 = 14/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
20/42 = 20 × 5/42 × 5 = 100/210 - Add the two like fractions:
14/210 + 100/210 = 14 + 100/210 = 114/210 - 114/210 simplified gives 19/35
- So, 2/30 + 20/42 = 19/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/30+20/42 2/30+40/42 2/60+20/42 2/30+20/84 6/30+20/42 2/30+60/42 2/90+20/42 10/30+20/42 14/30+20/42