Add 12/21 and 45/50
12/21 + 45/50 is 103/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 50 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 21 × 50 = 1050,
12/21 = 12 × 50/21 × 50 = 600/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
45/50 = 45 × 21/50 × 21 = 945/1050 - Add the two like fractions:
600/1050 + 945/1050 = 600 + 945/1050 = 1545/1050 - 1545/1050 simplified gives 103/70
- So, 12/21 + 45/50 = 103/70
In mixed form: 133/70
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