Add 21/50 and 63/70
21/50 + 63/70 is 33/25.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 70 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 50 × 7 = 350,
21/50 = 21 × 7/50 × 7 = 147/350 - Likewise, for the 2nd fraction, since 70 × 5 = 350,
63/70 = 63 × 5/70 × 5 = 315/350 - Add the two like fractions:
147/350 + 315/350 = 147 + 315/350 = 462/350 - 462/350 simplified gives 33/25
- So, 21/50 + 63/70 = 33/25
In mixed form: 18/25
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