Add 42/2 and 45/90
1st number: 21 0/2, 2nd number: 45/90
42/2 + 45/90 is 43/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
42/2 = 42 × 45/2 × 45 = 1890/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
45/90 = 45 × 1/90 × 1 = 45/90 - Add the two like fractions:
1890/90 + 45/90 = 1890 + 45/90 = 1935/90 - 1935/90 simplified gives 43/2
- So, 42/2 + 45/90 = 43/2
In mixed form: 211/2
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