Add 30/75 and 70/42
1st number: 30/75, 2nd number: 1 28/42
30/75 + 70/42 is 31/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
30/75 = 30 × 14/75 × 14 = 420/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
70/42 = 70 × 25/42 × 25 = 1750/1050 - Add the two like fractions:
420/1050 + 1750/1050 = 420 + 1750/1050 = 2170/1050 - 2170/1050 simplified gives 31/15
- So, 30/75 + 70/42 = 31/15
In mixed form: 21/15
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