Add 90/2 and 4/21
1st number: 45 0/2, 2nd number: 4/21
90/2 + 4/21 is 949/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
90/2 = 90 × 21/2 × 21 = 1890/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
4/21 = 4 × 2/21 × 2 = 8/42 - Add the two like fractions:
1890/42 + 8/42 = 1890 + 8/42 = 1898/42 - 1898/42 simplified gives 949/21
- So, 90/2 + 4/21 = 949/21
In mixed form: 454/21
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