Add 45/42 and 20/8
1st number: 1 3/42, 2nd number: 2 4/8
45/42 + 20/8 is 25/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
45/42 = 45 × 4/42 × 4 = 180/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
20/8 = 20 × 21/8 × 21 = 420/168 - Add the two like fractions:
180/168 + 420/168 = 180 + 420/168 = 600/168 - 600/168 simplified gives 25/7
- So, 45/42 + 20/8 = 25/7
In mixed form: 34/7
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