Add 15/45 and 90/84
1st number: 15/45, 2nd number: 1 6/84
15/45 + 90/84 is 59/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 84 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,
15/45 = 15 × 28/45 × 28 = 420/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
90/84 = 90 × 15/84 × 15 = 1350/1260 - Add the two like fractions:
420/1260 + 1350/1260 = 420 + 1350/1260 = 1770/1260 - 1770/1260 simplified gives 59/42
- So, 15/45 + 90/84 = 59/42
In mixed form: 117/42
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