Add 90/60 and 21/54
1st number: 1 30/60, 2nd number: 21/54
90/60 + 21/54 is 17/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 54 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 60 × 9 = 540,
90/60 = 90 × 9/60 × 9 = 810/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
21/54 = 21 × 10/54 × 10 = 210/540 - Add the two like fractions:
810/540 + 210/540 = 810 + 210/540 = 1020/540 - 1020/540 simplified gives 17/9
- So, 90/60 + 21/54 = 17/9
In mixed form: 18/9
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