Add 75/84 and 63/20
1st number: 75/84, 2nd number: 3 3/20
75/84 + 63/20 is 283/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
75/84 = 75 × 5/84 × 5 = 375/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
63/20 = 63 × 21/20 × 21 = 1323/420 - Add the two like fractions:
375/420 + 1323/420 = 375 + 1323/420 = 1698/420 - 1698/420 simplified gives 283/70
- So, 75/84 + 63/20 = 283/70
In mixed form: 43/70
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