Add 21/64 and 4/70
21/64 + 4/70 is 863/2240.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 70 is 2240
Next, find the equivalent fraction of both fractional numbers with denominator 2240 - For the 1st fraction, since 64 × 35 = 2240,
21/64 = 21 × 35/64 × 35 = 735/2240 - Likewise, for the 2nd fraction, since 70 × 32 = 2240,
4/70 = 4 × 32/70 × 32 = 128/2240 - Add the two like fractions:
735/2240 + 128/2240 = 735 + 128/2240 = 863/2240 - So, 21/64 + 4/70 = 863/2240
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