Add 12/5 and 45/42
1st number: 2 2/5, 2nd number: 1 3/42
12/5 + 45/42 is 243/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 5 × 42 = 210,
12/5 = 12 × 42/5 × 42 = 504/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
45/42 = 45 × 5/42 × 5 = 225/210 - Add the two like fractions:
504/210 + 225/210 = 504 + 225/210 = 729/210 - 729/210 simplified gives 243/70
- So, 12/5 + 45/42 = 243/70
In mixed form: 333/70
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