Add 90/2 and 28/21
1st number: 45 0/2, 2nd number: 1 7/21
90/2 + 28/21 is 139/3.
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,
28/21 = 28 × 2/21 × 2 = 56/42 - Add the two like fractions:
1890/42 + 56/42 = 1890 + 56/42 = 1946/42 - 1946/42 simplified gives 139/3
- So, 90/2 + 28/21 = 139/3
In mixed form: 461/3
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