Add 63/21 and 70/45
1st number: 3 0/21, 2nd number: 1 25/45
63/21 + 70/45 is 41/9.
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,
63/21 = 63 × 15/21 × 15 = 945/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
70/45 = 70 × 7/45 × 7 = 490/315 - Add the two like fractions:
945/315 + 490/315 = 945 + 490/315 = 1435/315 - 1435/315 simplified gives 41/9
- So, 63/21 + 70/45 = 41/9
In mixed form: 45/9
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