Add 3/72 and 9/70
3/72 + 9/70 is 143/840.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 70 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 72 × 35 = 2520,
3/72 = 3 × 35/72 × 35 = 105/2520 - Likewise, for the 2nd fraction, since 70 × 36 = 2520,
9/70 = 9 × 36/70 × 36 = 324/2520 - Add the two like fractions:
105/2520 + 324/2520 = 105 + 324/2520 = 429/2520 - 429/2520 simplified gives 143/840
- So, 3/72 + 9/70 = 143/840
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