Add 45/70 and 75/42
1st number: 45/70, 2nd number: 1 33/42
45/70 + 75/42 is 17/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
45/70 = 45 × 3/70 × 3 = 135/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
75/42 = 75 × 5/42 × 5 = 375/210 - Add the two like fractions:
135/210 + 375/210 = 135 + 375/210 = 510/210 - 510/210 simplified gives 17/7
- So, 45/70 + 75/42 = 17/7
In mixed form: 23/7
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