Add 42/30 and 10/42
1st number: 1 12/30, 2nd number: 10/42
42/30 + 10/42 is 172/105.
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,
42/30 = 42 × 7/30 × 7 = 294/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
10/42 = 10 × 5/42 × 5 = 50/210 - Add the two like fractions:
294/210 + 50/210 = 294 + 50/210 = 344/210 - 344/210 simplified gives 172/105
- So, 42/30 + 10/42 = 172/105
In mixed form: 167/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+10/42 42/30+20/42 42/60+10/42 42/30+10/84 42/30+30/42 42/90+10/42 42/30+50/42 42/30+70/42