Add 2/45 and 28/21
1st number: 2/45, 2nd number: 1 7/21
2/45 + 28/21 is 62/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 21 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
2/45 = 2 × 7/45 × 7 = 14/315 - Likewise, for the 2nd fraction, since 21 × 15 = 315,
28/21 = 28 × 15/21 × 15 = 420/315 - Add the two like fractions:
14/315 + 420/315 = 14 + 420/315 = 434/315 - 434/315 simplified gives 62/45
- So, 2/45 + 28/21 = 62/45
In mixed form: 117/45
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