Add 20/3 and 21/45
1st number: 6 2/3, 2nd number: 21/45
20/3 + 21/45 is 107/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 3 × 15 = 45,
20/3 = 20 × 15/3 × 15 = 300/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
21/45 = 21 × 1/45 × 1 = 21/45 - Add the two like fractions:
300/45 + 21/45 = 300 + 21/45 = 321/45 - 321/45 simplified gives 107/15
- So, 20/3 + 21/45 = 107/15
In mixed form: 72/15
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