Add 70/20 and 28/15
1st number: 3 10/20, 2nd number: 1 13/15
70/20 + 28/15 is 161/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
70/20 = 70 × 3/20 × 3 = 210/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
28/15 = 28 × 4/15 × 4 = 112/60 - Add the two like fractions:
210/60 + 112/60 = 210 + 112/60 = 322/60 - 322/60 simplified gives 161/30
- So, 70/20 + 28/15 = 161/30
In mixed form: 511/30
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