Add 15/28 and 45/70
15/28 + 45/70 is 33/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
15/28 = 15 × 5/28 × 5 = 75/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
45/70 = 45 × 2/70 × 2 = 90/140 - Add the two like fractions:
75/140 + 90/140 = 75 + 90/140 = 165/140 - 165/140 simplified gives 33/28
- So, 15/28 + 45/70 = 33/28
In mixed form: 15/28
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