Add 45/50 and 20/21
45/50 + 20/21 is 389/210.
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,
45/50 = 45 × 21/50 × 21 = 945/1050 - Likewise, for the 2nd fraction, since 21 × 50 = 1050,
20/21 = 20 × 50/21 × 50 = 1000/1050 - Add the two like fractions:
945/1050 + 1000/1050 = 945 + 1000/1050 = 1945/1050 - 1945/1050 simplified gives 389/210
- So, 45/50 + 20/21 = 389/210
In mixed form: 1179/210
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