Add 16/5 and 21/56
1st number: 3 1/5, 2nd number: 21/56
16/5 + 21/56 is 143/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 5 × 56 = 280,
16/5 = 16 × 56/5 × 56 = 896/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
21/56 = 21 × 5/56 × 5 = 105/280 - Add the two like fractions:
896/280 + 105/280 = 896 + 105/280 = 1001/280 - 1001/280 simplified gives 143/40
- So, 16/5 + 21/56 = 143/40
In mixed form: 323/40
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