Add 21/5 and 42/56
1st number: 4 1/5, 2nd number: 42/56
21/5 + 42/56 is 99/20.
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,
21/5 = 21 × 56/5 × 56 = 1176/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
42/56 = 42 × 5/56 × 5 = 210/280 - Add the two like fractions:
1176/280 + 210/280 = 1176 + 210/280 = 1386/280 - 1386/280 simplified gives 99/20
- So, 21/5 + 42/56 = 99/20
In mixed form: 419/20
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