Add 56/21 and 20/9
1st number: 2 14/21, 2nd number: 2 2/9
56/21 + 20/9 is 44/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
56/21 = 56 × 3/21 × 3 = 168/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
20/9 = 20 × 7/9 × 7 = 140/63 - Add the two like fractions:
168/63 + 140/63 = 168 + 140/63 = 308/63 - 308/63 simplified gives 44/9
- So, 56/21 + 20/9 = 44/9
In mixed form: 48/9
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