Add 21/5 and 20/56
1st number: 4 1/5, 2nd number: 20/56
21/5 + 20/56 is 319/70.
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,
20/56 = 20 × 5/56 × 5 = 100/280 - Add the two like fractions:
1176/280 + 100/280 = 1176 + 100/280 = 1276/280 - 1276/280 simplified gives 319/70
- So, 21/5 + 20/56 = 319/70
In mixed form: 439/70
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