Add 21/6 and 21/90
1st number: 3 3/6, 2nd number: 21/90
21/6 + 21/90 is 56/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
21/6 = 21 × 15/6 × 15 = 315/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
21/90 = 21 × 1/90 × 1 = 21/90 - Add the two like fractions:
315/90 + 21/90 = 315 + 21/90 = 336/90 - 336/90 simplified gives 56/15
- So, 21/6 + 21/90 = 56/15
In mixed form: 311/15
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