Add 56/21 and 12/45
1st number: 2 14/21, 2nd number: 12/45
56/21 + 12/45 is 44/15.
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,
56/21 = 56 × 15/21 × 15 = 840/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
12/45 = 12 × 7/45 × 7 = 84/315 - Add the two like fractions:
840/315 + 84/315 = 840 + 84/315 = 924/315 - 924/315 simplified gives 44/15
- So, 56/21 + 12/45 = 44/15
In mixed form: 214/15
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