Add 30/50 and 20/70
30/50 + 20/70 is 31/35.
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,
30/50 = 30 × 7/50 × 7 = 210/350 - Likewise, for the 2nd fraction, since 70 × 5 = 350,
20/70 = 20 × 5/70 × 5 = 100/350 - Add the two like fractions:
210/350 + 100/350 = 210 + 100/350 = 310/350 - 310/350 simplified gives 31/35
- So, 30/50 + 20/70 = 31/35
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