Add 42/81 and 75/70
1st number: 42/81, 2nd number: 1 5/70
42/81 + 75/70 is 601/378.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 70 is 5670
Next, find the equivalent fraction of both fractional numbers with denominator 5670 - For the 1st fraction, since 81 × 70 = 5670,
42/81 = 42 × 70/81 × 70 = 2940/5670 - Likewise, for the 2nd fraction, since 70 × 81 = 5670,
75/70 = 75 × 81/70 × 81 = 6075/5670 - Add the two like fractions:
2940/5670 + 6075/5670 = 2940 + 6075/5670 = 9015/5670 - 9015/5670 simplified gives 601/378
- So, 42/81 + 75/70 = 601/378
In mixed form: 1223/378
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