Add 45/21 and 63/45
1st number: 2 3/21, 2nd number: 1 18/45
45/21 + 63/45 is 124/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 21 × 15 = 315,
45/21 = 45 × 15/21 × 15 = 675/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
63/45 = 63 × 7/45 × 7 = 441/315 - Add the two like fractions:
675/315 + 441/315 = 675 + 441/315 = 1116/315 - 1116/315 simplified gives 124/35
- So, 45/21 + 63/45 = 124/35
In mixed form: 319/35
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