Add 9/90 and 21/4
1st number: 9/90, 2nd number: 5 1/4
9/90 + 21/4 is 107/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
9/90 = 9 × 2/90 × 2 = 18/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
21/4 = 21 × 45/4 × 45 = 945/180 - Add the two like fractions:
18/180 + 945/180 = 18 + 945/180 = 963/180 - 963/180 simplified gives 107/20
- So, 9/90 + 21/4 = 107/20
In mixed form: 57/20
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