Add 45/42 and 18/30
1st number: 1 3/42, 2nd number: 18/30
45/42 + 18/30 is 117/70.
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,
45/42 = 45 × 5/42 × 5 = 225/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
18/30 = 18 × 7/30 × 7 = 126/210 - Add the two like fractions:
225/210 + 126/210 = 225 + 126/210 = 351/210 - 351/210 simplified gives 117/70
- So, 45/42 + 18/30 = 117/70
In mixed form: 147/70
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