Add 70/50 and 32/21
1st number: 1 20/50, 2nd number: 1 11/21
70/50 + 32/21 is 307/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 21 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 50 × 21 = 1050,
70/50 = 70 × 21/50 × 21 = 1470/1050 - Likewise, for the 2nd fraction, since 21 × 50 = 1050,
32/21 = 32 × 50/21 × 50 = 1600/1050 - Add the two like fractions:
1470/1050 + 1600/1050 = 1470 + 1600/1050 = 3070/1050 - 3070/1050 simplified gives 307/105
- So, 70/50 + 32/21 = 307/105
In mixed form: 297/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/50+64/21 70/50+32/42 70/50+96/21 70/50+32/63