77-49=28÷2=〔14〕 21+14=35 35+14=49 49+14=63 63+14=77
Chat with our AI personalities
3:7; you just divide each number by 7.
LCM of 21 & 49 is 147, so all multiples of 147 are common multiples of 21 & 49.
21/49 = 3/7
The GCF is 7.
The LCM is 441.