Add 30/35 and 45/20
1st number: 30/35, 2nd number: 2 5/20
30/35 + 45/20 is 87/28.
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,
30/35 = 30 × 4/35 × 4 = 120/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
45/20 = 45 × 7/20 × 7 = 315/140 - Add the two like fractions:
120/140 + 315/140 = 120 + 315/140 = 435/140 - 435/140 simplified gives 87/28
- So, 30/35 + 45/20 = 87/28
In mixed form: 33/28
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