Add 20/70 and 84/16
1st number: 20/70, 2nd number: 5 4/16
20/70 + 84/16 is 155/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 16 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
20/70 = 20 × 8/70 × 8 = 160/560 - Likewise, for the 2nd fraction, since 16 × 35 = 560,
84/16 = 84 × 35/16 × 35 = 2940/560 - Add the two like fractions:
160/560 + 2940/560 = 160 + 2940/560 = 3100/560 - 3100/560 simplified gives 155/28
- So, 20/70 + 84/16 = 155/28
In mixed form: 515/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/70+84/16 20/70+84/32 60/70+84/16 20/70+84/48 20/70+84/80