Add 30/84 and 60/45
1st number: 30/84, 2nd number: 1 15/45
30/84 + 60/45 is 71/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 84 × 15 = 1260,
30/84 = 30 × 15/84 × 15 = 450/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
60/45 = 60 × 28/45 × 28 = 1680/1260 - Add the two like fractions:
450/1260 + 1680/1260 = 450 + 1680/1260 = 2130/1260 - 2130/1260 simplified gives 71/42
- So, 30/84 + 60/45 = 71/42
In mixed form: 129/42
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