Add 20/50 and 20/21
20/50 + 20/21 is 142/105.
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,
20/50 = 20 × 21/50 × 21 = 420/1050 - Likewise, for the 2nd fraction, since 21 × 50 = 1050,
20/21 = 20 × 50/21 × 50 = 1000/1050 - Add the two like fractions:
420/1050 + 1000/1050 = 420 + 1000/1050 = 1420/1050 - 1420/1050 simplified gives 142/105
- So, 20/50 + 20/21 = 142/105
In mixed form: 137/105
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