Add 42/3 and 21/20
1st number: 14 0/3, 2nd number: 1 1/20
42/3 + 21/20 is 301/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 3 × 20 = 60,
42/3 = 42 × 20/3 × 20 = 840/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
21/20 = 21 × 3/20 × 3 = 63/60 - Add the two like fractions:
840/60 + 63/60 = 840 + 63/60 = 903/60 - 903/60 simplified gives 301/20
- So, 42/3 + 21/20 = 301/20
In mixed form: 151/20
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