Add 2/70 and 21/40
2/70 + 21/40 is 31/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
2/70 = 2 × 4/70 × 4 = 8/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
21/40 = 21 × 7/40 × 7 = 147/280 - Add the two like fractions:
8/280 + 147/280 = 8 + 147/280 = 155/280 - 155/280 simplified gives 31/56
- So, 2/70 + 21/40 = 31/56
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