Add 54/21 and 90/25
1st number: 2 12/21, 2nd number: 3 15/25
54/21 + 90/25 is 216/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 25 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 21 × 25 = 525,
54/21 = 54 × 25/21 × 25 = 1350/525 - Likewise, for the 2nd fraction, since 25 × 21 = 525,
90/25 = 90 × 21/25 × 21 = 1890/525 - Add the two like fractions:
1350/525 + 1890/525 = 1350 + 1890/525 = 3240/525 - 3240/525 simplified gives 216/35
- So, 54/21 + 90/25 = 216/35
In mixed form: 66/35
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