Add 30/35 and 15/20
30/35 + 15/20 is 45/28.
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,
15/20 = 15 × 7/20 × 7 = 105/140 - Add the two like fractions:
120/140 + 105/140 = 120 + 105/140 = 225/140 - 225/140 simplified gives 45/28
- So, 30/35 + 15/20 = 45/28
In mixed form: 117/28
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