Add 70/32 and 42/20
1st number: 2 6/32, 2nd number: 2 2/20
70/32 + 42/20 is 343/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 20 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 32 × 5 = 160,
70/32 = 70 × 5/32 × 5 = 350/160 - Likewise, for the 2nd fraction, since 20 × 8 = 160,
42/20 = 42 × 8/20 × 8 = 336/160 - Add the two like fractions:
350/160 + 336/160 = 350 + 336/160 = 686/160 - 686/160 simplified gives 343/80
- So, 70/32 + 42/20 = 343/80
In mixed form: 423/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/32+84/20 70/64+42/20 70/32+42/40 70/96+42/20 70/32+42/60