Add 90/10 and 21/12
1st number: 9 0/10, 2nd number: 1 9/12
90/10 + 21/12 is 43/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 10 × 6 = 60,
90/10 = 90 × 6/10 × 6 = 540/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
21/12 = 21 × 5/12 × 5 = 105/60 - Add the two like fractions:
540/60 + 105/60 = 540 + 105/60 = 645/60 - 645/60 simplified gives 43/4
- So, 90/10 + 21/12 = 43/4
In mixed form: 103/4
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