Add 7/10 and 21/36
7/10 + 21/36 is 77/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 10 × 18 = 180,
7/10 = 7 × 18/10 × 18 = 126/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
21/36 = 21 × 5/36 × 5 = 105/180 - Add the two like fractions:
126/180 + 105/180 = 126 + 105/180 = 231/180 - 231/180 simplified gives 77/60
- So, 7/10 + 21/36 = 77/60
In mixed form: 117/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/10+21/36 7/10+42/36 7/20+21/36 7/10+21/72 21/10+21/36 7/10+63/36 7/30+21/36 35/10+21/36 7/50+21/36 49/10+21/36 7/70+21/36