Add 1/18 and 42/21
1st number: 1/18, 2nd number: 2 0/21
1/18 + 42/21 is 37/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
1/18 = 1 × 7/18 × 7 = 7/126 - Likewise, for the 2nd fraction, since 21 × 6 = 126,
42/21 = 42 × 6/21 × 6 = 252/126 - Add the two like fractions:
7/126 + 252/126 = 7 + 252/126 = 259/126 - 259/126 simplified gives 37/18
- So, 1/18 + 42/21 = 37/18
In mixed form: 21/18
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