Add 20/5 and 21/49
1st number: 4 0/5, 2nd number: 21/49
20/5 + 21/49 is 31/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 49 is 245
Next, find the equivalent fraction of both fractional numbers with denominator 245 - For the 1st fraction, since 5 × 49 = 245,
20/5 = 20 × 49/5 × 49 = 980/245 - Likewise, for the 2nd fraction, since 49 × 5 = 245,
21/49 = 21 × 5/49 × 5 = 105/245 - Add the two like fractions:
980/245 + 105/245 = 980 + 105/245 = 1085/245 - 1085/245 simplified gives 31/7
- So, 20/5 + 21/49 = 31/7
In mixed form: 43/7
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