Add 7/45 and 72/84
7/45 + 72/84 is 319/315.
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,
7/45 = 7 × 28/45 × 28 = 196/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
72/84 = 72 × 15/84 × 15 = 1080/1260 - Add the two like fractions:
196/1260 + 1080/1260 = 196 + 1080/1260 = 1276/1260 - 1276/1260 simplified gives 319/315
- So, 7/45 + 72/84 = 319/315
In mixed form: 14/315
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