Add 21/70 and 1/25
21/70 + 1/25 is 17/50.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 25 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 70 × 5 = 350,
21/70 = 21 × 5/70 × 5 = 105/350 - Likewise, for the 2nd fraction, since 25 × 14 = 350,
1/25 = 1 × 14/25 × 14 = 14/350 - Add the two like fractions:
105/350 + 14/350 = 105 + 14/350 = 119/350 - 119/350 simplified gives 17/50
- So, 21/70 + 1/25 = 17/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/70+1/25 21/70+2/25 21/70+1/50 63/70+1/25 21/70+3/25 21/70+1/75 21/70+5/25 21/70+7/25