Add 70/75 and 42/20
1st number: 70/75, 2nd number: 2 2/20
70/75 + 42/20 is 91/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 20 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
70/75 = 70 × 4/75 × 4 = 280/300 - Likewise, for the 2nd fraction, since 20 × 15 = 300,
42/20 = 42 × 15/20 × 15 = 630/300 - Add the two like fractions:
280/300 + 630/300 = 280 + 630/300 = 910/300 - 910/300 simplified gives 91/30
- So, 70/75 + 42/20 = 91/30
In mixed form: 31/30
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