Add 54/90 and 42/9
1st number: 54/90, 2nd number: 4 6/9
54/90 + 42/9 is 79/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
54/90 = 54 × 1/90 × 1 = 54/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
42/9 = 42 × 10/9 × 10 = 420/90 - Add the two like fractions:
54/90 + 420/90 = 54 + 420/90 = 474/90 - 474/90 simplified gives 79/15
- So, 54/90 + 42/9 = 79/15
In mixed form: 54/15
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