Add 54/15 and 54/90
1st number: 3 9/15, 2nd number: 54/90
54/15 + 54/90 is 21/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
54/15 = 54 × 6/15 × 6 = 324/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
54/90 = 54 × 1/90 × 1 = 54/90 - Add the two like fractions:
324/90 + 54/90 = 324 + 54/90 = 378/90 - 378/90 simplified gives 21/5
- So, 54/15 + 54/90 = 21/5
In mixed form: 41/5
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