Add 12/32 and 42/70
12/32 + 42/70 is 39/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 70 is 1120
Next, find the equivalent fraction of both fractional numbers with denominator 1120 - For the 1st fraction, since 32 × 35 = 1120,
12/32 = 12 × 35/32 × 35 = 420/1120 - Likewise, for the 2nd fraction, since 70 × 16 = 1120,
42/70 = 42 × 16/70 × 16 = 672/1120 - Add the two like fractions:
420/1120 + 672/1120 = 420 + 672/1120 = 1092/1120 - 1092/1120 simplified gives 39/40
- So, 12/32 + 42/70 = 39/40
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