Add 21/50 and 3/70
21/50 + 3/70 is 81/175.
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,
3/70 = 3 × 5/70 × 5 = 15/350 - Add the two like fractions:
147/350 + 15/350 = 147 + 15/350 = 162/350 - 162/350 simplified gives 81/175
- So, 21/50 + 3/70 = 81/175
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