Add 30/84 and 72/45
1st number: 30/84, 2nd number: 1 27/45
30/84 + 72/45 is 137/70.
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,
72/45 = 72 × 28/45 × 28 = 2016/1260 - Add the two like fractions:
450/1260 + 2016/1260 = 450 + 2016/1260 = 2466/1260 - 2466/1260 simplified gives 137/70
- So, 30/84 + 72/45 = 137/70
In mixed form: 167/70
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