Add 15/28 and 90/45
1st number: 15/28, 2nd number: 2 0/45
15/28 + 90/45 is 71/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
15/28 = 15 × 45/28 × 45 = 675/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
90/45 = 90 × 28/45 × 28 = 2520/1260 - Add the two like fractions:
675/1260 + 2520/1260 = 675 + 2520/1260 = 3195/1260 - 3195/1260 simplified gives 71/28
- So, 15/28 + 90/45 = 71/28
In mixed form: 215/28
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