Add 40/10 and 42/70
1st number: 4 0/10, 2nd number: 42/70
40/10 + 42/70 is 23/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 10 × 7 = 70,
40/10 = 40 × 7/10 × 7 = 280/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
42/70 = 42 × 1/70 × 1 = 42/70 - Add the two like fractions:
280/70 + 42/70 = 280 + 42/70 = 322/70 - 322/70 simplified gives 23/5
- So, 40/10 + 42/70 = 23/5
In mixed form: 43/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/10+42/70 40/10+84/70 40/20+42/70 40/30+42/70 40/50+42/70 40/70+42/70