Add 12/5 and 21/56
1st number: 2 2/5, 2nd number: 21/56
12/5 + 21/56 is 111/40.
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,
12/5 = 12 × 56/5 × 56 = 672/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
21/56 = 21 × 5/56 × 5 = 105/280 - Add the two like fractions:
672/280 + 105/280 = 672 + 105/280 = 777/280 - 777/280 simplified gives 111/40
- So, 12/5 + 21/56 = 111/40
In mixed form: 231/40
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