Answers

Add 1/3 and 3/7

1/3 + 3/7 is 16/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 3 and 7 is 21
2. For the 1st fraction, since 3 × 7 = 21,
   1/3 = 1 × 7/3 × 7 = 7/21
3. Likewise, for the 2nd fraction, since 7 × 3 = 21,
   3/7 = 3 × 3/7 × 3 = 9/21
4. Add the two fractions:
   7/21 + 9/21 = 7 + 9/21 = 16/21

Related: ²/₃+³/₇ ¹/₃+⁶/₇ ¹/₆+³/₇ ¹/₃+³/₁₄ ¹/₃+⁹/₇ ¹/₉+³/₇ ¹/₃+³/₂₁ ⁵/₃+³/₇ ¹/₃+¹⁵/₇ ¹/₁₅+³/₇ ¹/₃+³/₃₅ ⁷/₃+³/₇ ¹/₃+²¹/₇ ¹/₂₁+³/₇ ¹/₃+³/₄₉

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