Add 70/10 and 42/8
1st number: 7 0/10, 2nd number: 5 2/8
70/10 + 42/8 is 49/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
70/10 = 70 × 4/10 × 4 = 280/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
42/8 = 42 × 5/8 × 5 = 210/40 - Add the two like fractions:
280/40 + 210/40 = 280 + 210/40 = 490/40 - 490/40 simplified gives 49/4
- So, 70/10 + 42/8 = 49/4
In mixed form: 121/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/10+84/8 70/20+42/8 70/10+42/16 70/30+42/8 70/10+42/24 70/50+42/8 70/10+42/40 70/10+42/56