Add 80/2 and 42/21
1st number: 40 0/2, 2nd number: 2 0/21
802 + 4221 is 421.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
802 = 80 × 212 × 21 = 168042 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
4221 = 42 × 221 × 2 = 8442 - Add the two like fractions:
168042 + 8442 = 1680 + 8442 = 176442 - 1764/42 simplified gives 421
- So, 80/2 + 42/21 = 42/1
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