Add 5/30 and 42/70
5/30 + 42/70 is 23/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
5/30 = 5 × 7/30 × 7 = 35/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
42/70 = 42 × 3/70 × 3 = 126/210 - Add the two like fractions:
35/210 + 126/210 = 35 + 126/210 = 161/210 - 161/210 simplified gives 23/30
- So, 5/30 + 42/70 = 23/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/30+42/70 5/30+84/70 5/60+42/70 15/30+42/70 5/90+42/70 25/30+42/70 35/30+42/70