Add 54/21 and 50/20
1st number: 2 12/21, 2nd number: 2 10/20
54/21 + 50/20 is 71/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
54/21 = 54 × 20/21 × 20 = 1080/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
50/20 = 50 × 21/20 × 21 = 1050/420 - Add the two like fractions:
1080/420 + 1050/420 = 1080 + 1050/420 = 2130/420 - 2130/420 simplified gives 71/14
- So, 54/21 + 50/20 = 71/14
In mixed form: 51/14
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