Add 15/21 and 20/50
15/21 + 20/50 is 39/35.
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,
15/21 = 15 × 50/21 × 50 = 750/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
20/50 = 20 × 21/50 × 21 = 420/1050 - Add the two like fractions:
750/1050 + 420/1050 = 750 + 420/1050 = 1170/1050 - 1170/1050 simplified gives 39/35
- So, 15/21 + 20/50 = 39/35
In mixed form: 14/35
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