Add 21/42 and 14/30
21/42 + 14/30 is 29/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
21/42 = 21 × 5/42 × 5 = 105/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
14/30 = 14 × 7/30 × 7 = 98/210 - Add the two like fractions:
105/210 + 98/210 = 105 + 98/210 = 203/210 - 203/210 simplified gives 29/30
- So, 21/42 + 14/30 = 29/30
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