Add 1/21 and 4/6
121 + 46 is 57.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
121 = 1 × 221 × 2 = 242 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
46 = 4 × 76 × 7 = 2842 - Add the two like fractions:
242 + 2842 = 2 + 2842 = 3042 - 30/42 simplified gives 57
- So, 1/21 + 4/6 = 5/7
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