Add 9/90 and 21/16
1st number: 9/90, 2nd number: 1 5/16
9/90 + 21/16 is 113/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 16 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
9/90 = 9 × 8/90 × 8 = 72/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
21/16 = 21 × 45/16 × 45 = 945/720 - Add the two like fractions:
72/720 + 945/720 = 72 + 945/720 = 1017/720 - 1017/720 simplified gives 113/80
- So, 9/90 + 21/16 = 113/80
In mixed form: 133/80
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