Add 30/32 and 21/70
30/32 + 21/70 is 99/80.
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,
30/32 = 30 × 35/32 × 35 = 1050/1120 - Likewise, for the 2nd fraction, since 70 × 16 = 1120,
21/70 = 21 × 16/70 × 16 = 336/1120 - Add the two like fractions:
1050/1120 + 336/1120 = 1050 + 336/1120 = 1386/1120 - 1386/1120 simplified gives 99/80
- So, 30/32 + 21/70 = 99/80
In mixed form: 119/80
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