Add 42/35 and 45/20
1st number: 1 7/35, 2nd number: 2 5/20
42/35 + 45/20 is 69/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 35 × 4 = 140,
42/35 = 42 × 4/35 × 4 = 168/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
45/20 = 45 × 7/20 × 7 = 315/140 - Add the two like fractions:
168/140 + 315/140 = 168 + 315/140 = 483/140 - 483/140 simplified gives 69/20
- So, 42/35 + 45/20 = 69/20
In mixed form: 39/20
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