Add 28/32 and 21/70
28/32 + 21/70 is 47/40.
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,
28/32 = 28 × 35/32 × 35 = 980/1120 - Likewise, for the 2nd fraction, since 70 × 16 = 1120,
21/70 = 21 × 16/70 × 16 = 336/1120 - Add the two like fractions:
980/1120 + 336/1120 = 980 + 336/1120 = 1316/1120 - 1316/1120 simplified gives 47/40
- So, 28/32 + 21/70 = 47/40
In mixed form: 17/40
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